The AI inspection layer for the used-car market.
A live, production-grade product that turns any vehicle into an instant, model-specific fault checklist · available for acquisition, licensing or partnership.
~£60B
UK used-car market*
Seconds
To a full checklist
~£0
Marginal cost per check
Pre-revenue
No paying users yet
Executive summary
An instant, expert second opinion on any car
VehicleFaults collapses days and hundreds of pounds of inspection cost into a model-specific checklist anyone can run in seconds.
What it does
VehicleFaults turns any make, model, variant, year and mileage into a grounded, model-specific fault checklist in seconds · the faults that car is actually known for, with evidence and sources.
Who it's for
Used-car dealers and trade buyers who appraise at auction and on trade-ins, plus consumers buying privately who want to inspect like a pro before they pay.
Why it matters
A single missed fault can wipe out the margin on a car. VehicleFaults makes expert-level inspection instant and near-free, so every buying decision is defensible.
VehicleFaults is pre-revenue and pre-launch · there are no paying users yet. The figures below describe what has been built and shipped, not traction or revenue.
90
SEO fault pages published
Every model
Checklist coverage
Live
Chrome extension shipped
3+
Monetisation lines designed
Problem & solution
Buying used cars is a margin gamble
Buyers have no fast, reliable way to know what's wrong before they pay · VehicleFaults fixes that.
The problem
Buyers appraise blind
At auction and on trade-ins, dealers have minutes to value a car. Model-specific faults and expensive failure points stay hidden until after they've paid.
Recon surprises kill margin
One missed fault can turn a profitable unit into a loss. With used margins already compressed, buyers can't afford surprises in the workshop.
Inspections don't scale
A pro pre-purchase inspection costs £150–£300 and takes days. Nobody moving dozens of cars a week can run one on every vehicle.
The solution
Instant, model-specific checklists
Grounded AI generates the exact faults each model is known for in seconds · right at the lane, the trade-in desk or the driveway.
Protect every pound of margin
Buyers know what to inspect, what to budget for recon, and what to negotiate on before a pound changes hands.
Evidence, not guesswork
Every fault is backed by real sources and severity guidance, so the output is trustworthy enough to act on.
Product overview
A polished product, live today
Real screens from the running app · AI checklists, saved history, photo evidence and a browser extension.
- AI checklist generator grounded in real fault data
- Model-specific results by make, variant, year and mileage
- Save, tick off and annotate checks with private photo evidence
- Searchable history of every vehicle appraised
- Chrome extension that runs checks inside listing and auction sites
- Programmatic SEO fault library across popular UK models
- Free instant fault report as a no-signup lead magnet
- Branded pass certificates & advert images for clean cars
- Printable pre-purchase inspection sheets with your dealer branding
- Public verification pages for every completed inspection
- MCP server so ChatGPT & Claude can query the fault engine
- Admin dashboard with live usage, revenue and email analytics
Technology
Modern, typed and maintainable
A clean full-stack architecture built for a smooth handover and fast iteration.
Modern full-stack app
Server-rendered React with typed server functions, a relational database with row-level security, and clean separation between app, data and AI layers.
Grounded AI pipeline
Research and expert prompting produce evidence-backed, model-specific checklists · with schemas and sourcing that keep outputs trustworthy.
Integrations
Public API routes power the browser extension today and are ready to feed marketplace, DMS and auction integrations next.
Current status
Built, deployed and documented
The hard part is done · a live product with a clear, short list of what remains.
Live, branded product
AI checklist engine, auth, private photo evidence, saved history, branded email infrastructure, Chrome extension and marketing site · all in production.
Payments & billing
Subscription plans are designed and wired; connecting a live payment provider is the main step to switch on recurring revenue.
Documentation
Product PRDs, database schema, migrations and a typed, modular codebase · ready for a clean handover.
Deployment status
Running on a managed cloud backend with auth, storage and a deployment pipeline on the live vehiclefaults.com domain.
Market opportunity
A vast market with a missing layer
~40M used vehicles change hands in the US each year* · every one a moment where inspection intelligence protects margin.
Target customers
UK used-car dealers and trade buyers as the paid wedge, with a consumer funnel of millions of private buyers behind it.
Market trends
Used-car gross margins have compressed sharply since 2021. Dealers are actively hunting for tools that protect margin on every acquisition.
Competitive landscape
History reports cover paperwork; generic checklists aren't model-specific; physical inspections don't scale. No incumbent owns instant, model-specific mechanical risk.
Sources
- UK used-car market size (~£60B) and ~8M annual unit sales · SMMT / industry estimates
- ~10k franchised and independent UK used-car dealers · SMMT / industry figures
- Typical pre-purchase inspection cost of £150–£300 · Published UK independent-mechanic pricing
Market figures are external industry estimates, not VehicleFaults data. The product is pre-revenue with no paying users yet.
Why now
The timing has never been better
Three forces converge to make this the moment to own the trust layer for used cars.
AI reached the tipping point
Grounded LLMs can now synthesise reliable, model-specific mechanical knowledge at near-zero marginal cost · impossible and unaffordable two years ago.
Margins are under pressure
Squeezed used-car profits make tools that protect margin on every acquisition an easy yes for dealers.
Dealer tooling is digital
Dealers already run their lots on DMS, appraisal and auction software. Fault intelligence is the missing layer that plugs straight in.
Competitive positioning
Why buyers choose VehicleFaults
Not a comparison table · just the reasons it wins.
Why choose it
It's the only way to get an expert, model-specific fault list in seconds for near-zero cost · on every car, not just the one you can afford to inspect.
What makes it different
Grounded, evidence-backed generation tuned to the exact model and year · not a generic checklist and not a paperwork-only history report.
The advantage
A premium exact-match brand and domain, a Chrome extension inside the buying workflow, and a fault dataset that compounds with every check.
Business model
High-margin, recurring by design
Sticky dealer subscriptions today, with licensing and a consumer funnel widening the moat over time.
Pricing model
Per-seat and per-location dealer subscriptions as the core, with a freemium consumer tier funnelling from SEO · high-margin, recurring revenue.
Revenue opportunities
Dealer plans, API and data licensing to marketplaces, warranty and insurance providers, and consumer subscriptions.
Expansion opportunities
Land-and-expand into multi-location groups, white-label reports, and bundled add-ons like recon estimates and valuation.
Growth opportunities
Plenty of room to expand
Clear, fundable directions that show where the product can go from here.
Mobile apps
Native iOS/Android apps for checks and photo capture at the lane and driveway.
Enterprise version
Multi-seat accounts, roles, audit trails and admin controls for dealer groups.
API
License the fault-intelligence engine to marketplaces, auctions and insurers.
White label
Branded checks and reports embedded in partners' own products.
International expansion
The engine generalises to any market's models · UK, EU and beyond.
Additional AI features
Recon cost estimates, valuation, photo-based fault detection and negotiation prompts.
Pricing & packaging
Priced to be an easy yes
Transparent, self-serve dealer plans that any lot can approve in a minute · with room to expand into groups, API and data licensing.
Free
For private buyers checking a car before they pay.
£0forever
no card, no expiry
- 3 fault checks per month
- Model-specific checklist
- Access to the common-fault library
- Works on any make, model & year
Solo
For independent dealers and heavy trade buyers.
£39/mo
per seat · billed annually· save £120/yr
- 1 seat
- Unlimited fault checks
- Grounded reports with evidence & sources
- Save, annotate & attach photo evidence
- Searchable history of every appraisal
- Branded windscreen certificates & advert images
- Chrome extension inside listing & auction sites
Dealership
For a lot or forecourt appraising all day, every day.
£79/mo
per seat · billed annually· save £240/yr
- Up to 5 seats
- Everything in Solo
- Shared team history & saved checks
- Deep grounded fault reports
- Priority AI generation
- Priced per location
Group & API
For multi-site groups, marketplaces & data partners.
Custom
tailored to your group
- Unlimited seats across every location
- API access & bulk fault data
- White-label reports
- Warranty & insurance data feeds
- Dedicated onboarding & SLA
Every paid plan starts with a 60-day free trial · no credit card needed to begin. All prices shown in GBP (£).
Unit economics
High-margin and recurring by design
Illustrative target economics for the designed pricing · AI inference costs cents while dealers save thousands, so the model is built to compound.
~£1,000
Blended ARPA / year
A mix of Solo, Dealership and Group accounts lands around £1k of annual recurring revenue per paying account.
~90%+
Gross margin
Each grounded check costs cents of AI inference, so subscription revenue converts almost entirely to gross profit.
1 fault
Customer payback
A single missed fault costs a dealer £1,000+ in recon. One catch pays for a whole year · an easy renewal decision.
Dealer subscriptions
Per-seat and per-location plans from £49–£99/mo are the core recurring line, with multi-site groups on custom terms.
API & data licensing
Marketplaces, warranty and insurance providers pay to embed checks or license the compounding fault dataset.
Consumer & expansion
A freemium consumer tier funnels from SEO, while add-ons like recon estimates and valuation widen ARPA over time.
Figures above are illustrative targets for the designed pricing model, not reported results · VehicleFaults is pre-revenue.
Buyer FAQ
Questions buyers ask first
The essentials up front · full financials and technical detail in the data room.
Commercial opportunities
Flexible ways to work together
From a clean asset acquisition to licensing and partnership · structured to fit how you want to grow it.
Acquisition
Full asset purchase of a live, branded product with transferable code, IP, data and domain.
Licensing
License the fault-intelligence engine or brand into your existing platform.
Revenue share
Deploy against your distribution and share the upside as it monetises.
Joint venture
Combine your market access with the product to build a category leader together.
Venture studio partnership
Fold VehicleFaults into a studio portfolio with operating support.
Strategic partnership
Integrate fault checks into your dealer, marketplace or insurance workflow.
Technical detail & cost base in the data room
Architecture, roadmap, cost base and IP · shared privately after a quick intro. Pre-revenue, so there are no revenue figures yet.
Why this product is available
A builder-first approach
I build products fast with an AI-assisted approach · validating ideas as complete, production-grade apps. VehicleFaults is one of several I've taken from zero to live. Rather than run every product solo, I make the strongest ones available to operators and acquirers who already have the distribution to scale them. You get a finished, defensible product without the 12–18 months of build.
About the builder
A track record of shipping products
Experience across the SaaS landscape, with an AI-assisted process that turns ideas into live products fast.
100+
SaaS companies worked with
10+
Products built end to end
AI-first
Assisted development approach
Figures above are self-reported by the builder.
Next steps
Let's talk about VehicleFaults
Book a call for a full walkthrough, request a demo, or reach out for the details on acquisition, licensing and partnership.