Carreb — Common Questions

Last Updated: 25 March 2026

About Carreb

Carreb is an AI-powered platform that provides estimated costs of owning a new car — financially and environmentally. It is not a car review site, car sales platform, or vehicle comparator. Carreb uses certified laboratory data, trusted public sources, its own proven calculation methods, and your personal inputs to help you make better-informed, cost-conscious, and environmentally aware vehicle choices.

With every new vehicle in Australia — 3,000+ variants across petrol, diesel, hybrid, plug-in hybrid, electric, and hydrogen — choosing a new car has become more complex than ever. Most existing resources focus on features, reviews, or sales. Carreb focuses on what matters to your wallet and the planet: estimated ownership costs, tailpipe CO₂ performance, and potential savings.

Carreb is designed to give you clarity in seconds, not hours. Here is what the platform offers:

  • Cost of Ownership (COO) — Estimated total spend over time, including fuel or energy, servicing, insurance, registration, and optional finance.
  • Tailpipe CO₂ Emissions — Estimated tailpipe emissions derived from government-sourced data, tailored to your vehicle type. Verifiable and transparent.
  • Estimated Savings — See how much you could potentially save relative to your current vehicle, annually or over five years. These are calculated estimates only.
  • CORE™ Rating — Carreb's proprietary 5-star rating that blends estimated cost of ownership and tailpipe CO₂ into one overall score.
  • CORE™ Dial — An interactive tool that lets you adjust your priorities (cost, cost of living impact, resale value, or the full picture) so you can view results aligned to your goals.
  • Spotlights™ — Curated badges highlighting the top performers in your shortlist for cost, tailpipe emissions, range, savings, and segment value.
  • Smart Car Finder and SmartMatch — Discovery tools that help you explore vehicles suited to your lifestyle, usage, and priorities.
  • RideReveal™ — A personalised, informational interpretation of each vehicle you consider, exploring the psychological motivations behind your choice and the social impressions it may convey. RideReveal outputs are subjective and for informational and entertainment purposes only — they are not statements of fact or purchase recommendations.

No spreadsheets. No guesswork. Just clear, estimated answers to help you start your research — fast. Data is drawn from trusted sources including government data, manufacturer specifications, and standard assumptions, combined with your own inputs.

All outputs are calculated estimates and are provided for informational purposes only. They are not financial advice, valuations, guarantees, or recommendations. Always verify details with a dealer, financial adviser, or other relevant professional before making any purchasing decision. See our Terms of Service for full disclaimers.

We tried. That's actually how Carreb started.

We spent countless hours across multiple AI models trying to make sense of vehicle ownership costs — fuel, servicing, insurance, depreciation, emissions — and every model gave us different answers. We ended up buried in spreadsheets trying to reconcile the outputs. It was slow, inconsistent, and utterly confusing — even for a physicist.

That experience revealed five fundamental limitations of using AI tools alone for this:

  • Incomplete coverage. They look at a subset of cars — without telling you which ones they skipped. The best-rated option may never even appear.
  • No structured model. Even with good data, they have no proven, consistent algorithm to process it. Same data in, different answers out.
  • Inconsistent outputs. Ask the same question twice and you may get a completely different response.
  • No decision tools. No CORE™ Rating. No CORE™ Dial. No estimated savings analysis. No Spotlights™. No RideReveal™. Just unstructured text you have to interpret yourself.
  • Slow. Hours of prompting and spreadsheets to piece together what Carreb delivers in seconds.

Carreb uses AI too — to source specific data points. But the difference is what happens next: structured, proven algorithms transform that data across every new car in the Australian market into a simple, consistent, stress-free output — for less than the price of a coffee.

All outputs are calculated estimates provided for informational purposes only. They are not financial advice, valuations, guarantees, or recommendations.

Because none of those tools answer the question most buyers actually need help with: "What is the estimated cost of owning this car for me, right now?"

Carreb does not replicate car reviews, dealer specification sheets, or standalone emissions databases. Instead, it combines official data and your inputs to produce estimated cost-of-ownership figures, potential savings figures, and tailpipe emissions insights that are personalised to your circumstances.

Our platform is designed to complement — not replace — car reviews, dealer conversations, and independent research.

Yes. At launch, Carreb focuses exclusively on new vehicles to ensure the most consistent and reliable outputs. Used vehicle support is in development.

Carreb will launch first in Australia. Our platform is built with other countries in mind and can be adapted to the fuel rules, financial structures, and regulations of other markets. International expansion is planned for future phases.

CORE™ Rating and Methodology

The CORE (Cost of Ownership and Responsible Emissions) Rating is Carreb's proprietary 1–5 star rating that combines estimated cost of ownership and estimated tailpipe CO₂ emissions performance into one score. It is derived from data and calculation, not opinion. Unlike star ratings based on features or style, CORE focuses on objective, measurable factors that directly affect your estimated costs and environmental footprint.

The CORE™ Rating is an estimated score based on calculated data. It is not a guarantee of performance, a statement of vehicle quality, or a recommendation to purchase or avoid any vehicle. Different users with different inputs may see different ratings for the same vehicle.

Carreb offers four CORE mode views (subject to subscription level):

  • Pure Cost: Focuses on estimated ownership costs excluding financing and resale value. Ideal for a simple, like-for-like running cost estimate.
  • COOL Choice (Cost of Living Choice): Includes estimated financing costs but excludes resale value. Useful for understanding estimated monthly and annual expenses.
  • True Value: Excludes financing but includes estimated resale value after the holding period. Suited for buyers paying cash who want an estimated net cost of ownership.
  • Full Picture: Includes both estimated financing costs and estimated resale value. The most comprehensive view of estimated lifetime ownership cost.

You can switch views with a single click. For best results, set your own inputs in MyGarage (e.g., km/year, finance terms, insurance, energy rates, and holding period). All figures are calculated estimates and are approximate only.

Accuracy, Data and Methodology

Carreb uses the following data sources and methods:

  • Official laboratory test data required under Australian government vehicle standards. Lab test results will differ from real-world driving — your actual costs and emissions may be higher or lower.
  • Published government test results as-is. We do not convert between different official testing methods unless we tell you we have done so.
  • State and region-specific inputs, including fuel prices and electricity costs. Electricity emissions data is not live or real-time unless stated.
  • AI-assisted checks and consistency reviews, subject to human oversight.
  • Your inputs (km/year, finance terms, insurance, energy rates, etc.). Where inputs are missing, we use standard defaults until you override them in MyGarage.

If you have not set a current vehicle, we apply a category-specific annual km default derived from Australian Bureau of Statistics data. All results are estimates only and should not be relied upon as the sole basis for any purchasing decision.

For full details, see our Vehicle Data Sources, Standards and Methodology page.

All vehicles on Carreb are assessed using tailpipe emissions data from official government-endorsed testing, which is required for every new passenger vehicle sold in Australia. These tests follow internationally recognised standards adopted here in Australia.

We use trusted government sources for our emissions figures, combined with state-based fuel and electricity costs, how clean or carbon-intensive each state's electricity supply is, and typical annual driving distances. Electricity emissions data is not live or real-time unless stated.

If you use home solar or renewable energy, you can customise your inputs in MyGarage to receive more tailored tailpipe emissions estimates based on your actual driving and charging conditions.

Estimated resale values are based on careful, cautious estimates of how much vehicles tend to lose their value over time, built from automotive resale trend data. Actual resale outcomes may vary significantly depending on brand, condition, mileage, demand, market cycles, and other factors. Finance cost estimates use default assumptions based on average consumer loan rates and terms as disclosed near the metric. You can customise both in MyGarage to better reflect your own financing or resale expectations.

Resale value and finance estimates are approximate only. They are not valuations, trade-in offers, credit assessments, or financial advice. Always obtain independent advice and dealer appraisals before making financial decisions.

Our resale value figure is a general market estimate only. It is based on how much similar vehicles typically hold their value over five years, adjusted for typical driving distances. It does not consider your specific vehicle's condition, options, accessories, repair or ownership history, local supply and demand, or market timing. You can override our estimate in MyGarage. Get a dealer appraisal if you need an actual figure.

Features and Tools

Carreb offers two discovery tools:

  • Smart Car Finder (SCF): Uses your selected filters (budget, fuel type, usage, ownership goals) to suggest suitable vehicles. It is fast and intuitive when you have clear criteria.
  • SmartMatch: Allows you to describe your situation in natural language (e.g., "I'm a family of five with a long commute and a $45k budget"). Our AI interprets your needs and suggests tailored options based on estimated cost, tailpipe CO₂, and usability.

Many users start with the CORE™ Dial, then refine results via SmartMatch.

RideReveal offers a personalised, informational interpretation of each vehicle you add to MyGarage. It explores the psychological motivations behind your choice and the social impressions it may convey, drawing on published research in consumer behaviour and identity signalling.

RideReveal outputs are subjective, informational, and for entertainment and educational purposes. They are not statements of fact, psychological assessments, or purchase recommendations.

Free Tier users can purchase one RideReveal for their single saved vehicle. Paid tiers can purchase discounted bundles for use across multiple vehicles. Full Insight Pro users receive unlimited access. Each RideReveal is specific to the individual vehicle you unlock it for. All RideReveal purchases are final except as required by the Australian Consumer Law.

Spotlights is a one-time purchase that permanently unlocks all premium Spotlight badges for every vehicle you add to your MyGarage. Once purchased, Spotlights remain active even if you change or cancel your plan. A badge will appear on every vehicle that meets the relevant Spotlight criteria. Spotlight purchases are final except as required by the Australian Consumer Law.

The number of vehicles you can save depends on your plan. This includes both active vehicles in MyGarage and any vehicles you have archived:

  • Free plan: 1 vehicle
  • Car Buying Sprint (3 months): up to 10 vehicles
  • CORE Annual: up to 10 vehicles
  • Full Insight Pro: up to 30 vehicles

If you need more capacity, you can upgrade your plan at any time. Archived vehicles count toward your plan's total limit.

Who Is Carreb For

Anyone seeking clarity beyond traditional car reviews, dealer specifications, and feature-focused resources. Carreb is particularly useful if you are:

  • A first-time buyer wanting confidence, simplicity, and clear cost estimates.
  • A family budgeting carefully, balancing affordability, safety, and space.
  • A commuter aiming to reduce ongoing fuel and running costs.
  • A retiree focused on reliability, stress-free ownership, and low maintenance expenses.
  • An environmentally conscious driver exploring hybrids and EVs, wanting estimated tailpipe emissions insights.
  • A fleet manager or small business owner looking for transparent, detailed cost analysis over the life of vehicles.

Carreb does not replace car reviews or dealer conversations — it complements them by filling gaps around estimated ownership costs, estimated tailpipe emissions impact, and potential long-term savings.

Fairness, Independence and Data Integrity

No. Carreb applies the same calculation methodology to every new vehicle in our database, regardless of brand, manufacturer, or fuel type. We do not single out, target, or unfairly disadvantage any model. Our goal is to give you consistent, transparent information so you can make your own informed choice.

No. We use the same transparent methodology for petrol, diesel, hybrid, plug-in hybrid, battery electric, and hydrogen vehicles. Where EVs have lower estimated running costs or cleaner estimated tailpipe emissions in your area, that will be reflected. Where they do not, that will also be visible. We do not promote any technology, fuel type, or brand.

Carreb uses reputable data sources, standardised models, and clearly disclosed assumptions applied uniformly to every vehicle. We recognise that actual pricing, servicing costs, and ownership factors can vary between regions, dealerships, and promotional periods. To keep our estimates as accurate and fair as possible, we actively invite manufacturers and dealers to share updated, verified information via our Contact Us page.

We understand every buyer's experience is unique. Carreb lets you adjust key inputs — distance travelled, energy source, financing, dealer offers, servicing costs, insurance estimates, resale value expectations, and your own driving details — to better match your circumstances. Where inputs are missing, we use standard defaults until you override them in MyGarage.

We welcome feedback to improve our models. To report a data issue, please use the Contact Us page.

We welcome any verifiable and consistently applicable data that can improve accuracy for Australian buyers, including: current driveaway pricing or regional offers; available dealer-specific discounts or incentives; average financing terms and rates; manufacturer-backed servicing plans and costs; warranty or guaranteed future value programs; and any other ownership cost details relevant to real-world buyers.

Supplied data that can be verified and is broadly applicable will be considered for inclusion in Carreb's pricing, cost-of-ownership, and savings models. Our goal is to ensure our estimates remain as accurate, fair, and helpful as possible for Australian consumers. Carreb reserves the right to assess the suitability of any supplied data and may decline to publish dealer-specific information that cannot be independently verified.

Carreb is committed to independence and transparency. While advertisers may choose to promote their brands on our platform in future, such commercial relationships will never influence the CORE™ Rating or any cost, tailpipe emissions, or savings calculations. The CORE™ Rating is based purely on data and methodology, not commercial incentives. Any promotional content will be clearly marked as such.

Pricing and Business

Carreb offers tiered plans starting with a free service. Whether you want to explore one vehicle or dive deep into cost breakdowns across many, there is a plan to suit your needs. Visit our Pricing Page for a full breakdown of features and pricing.

Yes. We are building dedicated tools for fleets and small businesses. Use the Contact Us page to learn more or register your interest.

Yes. Carreb is designed to promote transparency, not negotiation pressure. We welcome partnerships with dealerships that want to highlight clear, verified pricing and build trust with buyers. Our platform can feature verified driveaway offers or service packages that may improve a vehicle's estimated cost of ownership. If you are a dealer or manufacturer interested in collaborating, please contact us via the Contact Us page.

Important Disclaimers

Carreb provides estimated figures only. While we use reputable data sources and a robust calculation method, our outputs are not guarantees, valuations, or professional advice. You must always independently verify material details before making any major purchasing or financial decision. Carreb is not responsible for outcomes or decisions based on our estimates. See our Terms of Service for full disclaimers and limitations of liability.

Carreb incorporates AI to assist with data collection, consistency checks, user matching, and estimating resale values — particularly for newer drivetrain types (hybrids, plug-in hybrids, electric vehicles) where traditional valuation methods have limited historical transaction data. While our tools are continually refined and validated, some outputs may reflect outdated, incomplete, or contextually inaccurate public data. AI-assisted outputs are subject to human oversight but are not guaranteed to be error-free. We encourage users to review their inputs and treat all results as indicative only.

Carreb complies with the Privacy Act 1988 (Cth) and the Australian Privacy Principles. We handle personal information in accordance with our Privacy Policy and use appropriate technical and organisational measures to protect it. We do not sell personal data. View our Privacy Policy for full details.

General

Carreb launched on 1 June 2026.

Yes. Carreb is designed to complement — not replace — the work of car review sites, automotive journalists, and influencers. Review sites help you decide which car you like. Carreb helps you understand what it may cost to own. We welcome partnerships with reviewers, media outlets, and content creators who want to give their audiences an extra layer of estimated cost and emissions insight alongside their reviews. Look for the CORE™ Rating wherever you see it — it means that vehicle has been assessed through Carreb's cost-of-ownership and emissions methodology. If you're a reviewer, publisher, or influencer interested in featuring the CORE™ Rating, reach out via our Contact Us page.

Use our Contact Us page for all enquiries, including support, complaints, data corrections, partnership enquiries, and security disclosures.

General Disclaimer

The information in this FAQ is provided for general informational purposes only and does not constitute financial, legal, tax, environmental, or other professional advice. All estimates, ratings, and outputs described are approximate only and are subject to the assumptions, limitations, and disclaimers set out in our Terms of Service, Privacy Policy, and Vehicle Data Sources, Standards and Methodology page. Nothing in this FAQ excludes, restricts, or modifies your rights under the Australian Consumer Law.