Data & research
Automotive Data & Research
Original reports from the WheelsAI platform — MOT reliability by make, regional price indices, days-to-sale data, and UK used car market analysis. All backed by DVLA, DVSA and live listing records.
Buyer research
Data-led reports for used car buyers — reliability, pricing, depreciation and seasonal patterns.
Most Reliable Used Cars UK 2026: MOT Pass Rates by Make
WheelsAI analysed MOT pass rates across UK registrations to identify the most and least reliable used car makes. Toyota and Mazda lead; Land Rover and Alfa Romeo trail.
Buyer dataUsed Car Prices in the North West vs National Average (2026)
WheelsAI's regional price index for the North West of England in 2026 — how Lancashire and Greater Manchester used car prices compare to the national average by make and category.
Buyer dataHow Long Does a Used Car Take to Sell in the UK? (2026 Data)
WheelsAI analysed days-to-sale across UK used car listings in 2026. Hybrids and economy hatchbacks sell in under 20 days. Large diesel estates take over 45. The data gives buyers real negotiating leverage.
Buyer dataMost Overpriced Used Cars in the UK (2026): Which Models Sell Above Market?
WheelsAI analysed asking prices vs market valuations across UK listings to identify the used cars most commonly priced above their real market value — and by how much.
Buyer dataMileage Fraud in UK Used Cars (2026): Which Makes Have the Most Anomalies?
WheelsAI analysed DVSA MOT mileage records to identify which used car makes most frequently show mileage anomalies — and how to spot them before you buy.
Buyer dataUsed Car Depreciation Sweet Spot (2026): When to Buy Each Category
WheelsAI analysed depreciation curves across UK used car categories to identify when each type hits its price floor — the point where value and condition are best balanced for buyers.
Buyer dataUK Used Car Insurance Groups (2026): Which Models Cost Most to Insure?
WheelsAI maps insurance groups to real annual premium data for the most popular UK used cars in 2026 — showing the true cost difference between choosing a group 5 car and a group 20.
Buyer dataReal-World MPG vs Advertised: Which Used Cars Get Closest to Their Claimed Economy?
WheelsAI cross-referenced WLTP fuel economy figures with real-world UK driving data to reveal which used car models consistently reach their claimed MPG — and which fall furthest short.
Buyer dataBest Time to Buy a Used Car in the UK (2026): Seasonal Price Data
WheelsAI analysed listing price trends across 12 months of UK used car data to identify the cheapest months to buy — and which categories show the strongest seasonal variation.
Dealer intelligence
Data reports for UK used car dealers — stock turn, buyer behaviour, lead conversion and pricing accuracy.
The Hidden Cost of Slow-Moving Stock: What Every Day on Your Forecourt Actually Costs (2026)
WheelsAI analysed forecourt dwell times across UK dealer inventory to quantify what slow-moving stock costs in margin erosion and floor plan interest — and which models sit longest.
Dealer dataWhich Buyers Are Ready to Purchase? Engagement Signals That Predict Conversion (2026)
WheelsAI analysed per-vehicle buyer engagement timelines to identify which buyer signals most reliably predict a purchase within 48 hours — and what happens when dealers miss them.
Dealer dataSpeed-to-Lead: How Response Time Affects Used Car Enquiry Conversion (2026 Data)
WheelsAI analysed response time vs enquiry conversion data across UK dealer enquiries to quantify exactly what each hour of delay costs — and what a 60-second SMS response changes.
Dealer dataDead Leads Aren't Dead: UK Dealer Lead Reactivation Data (2026)
WheelsAI analysed 12 months of lead follow-up data to show how many "dead" dealer enquiries convert when contacted by AI-driven follow-up — and the revenue that abandoned leads represent.
Dealer dataInventory Pricing Accuracy: How Mispriced Stock Costs UK Dealers Margin (2026)
WheelsAI analysed asking price vs market value across dealer inventory to show how pricing variance affects both days-to-sale and gross profit per unit — and what repricing to market does.
Data-grounded guides
Buying guides built directly from DVSA and DVLA records — the same data sources as our research reports.
How to Read a Used Car MOT History
Every MOT test since 2005 is on the DVSA database. The mileage curve, repeated advisories and failure categories reveal what the listing omits.
DVLA / DVSAHow to Spot a Clocked Car Using DVSA Data
The DVSA records mileage at every MOT. A drop or implausibly low annual rise is the clocking signature — here's how to read it before you view.
Market dataUsed Car Depreciation by Body Type (UK 2026)
Superminis, hatches, estates, SUVs and EVs don't depreciate at the same rate. What the data says about which body types hold value best.
Market dataPetrol vs Diesel in 2026 — The Real Ownership Numbers
ULEZ expansion and changing residuals have redrawn the petrol vs diesel calculation. Fuel cost, service cost, and depreciation for typical UK use.
About our data
WheelsAI connects directly to DVLA, DVSA, and Experian AutoCheck. Research reports published here are based on anonymised aggregate data across our active UK inventory — no individual buyers or dealers are identified.