A structured, factual breakdown of any Porsche 911 listing — specification analysis, history and risk signals, factual price context — with a tailored checklist for in-person inspection.
The analysis between finding a car and inspecting it
Most buyers browse Auto Trader and PistonHeads, form an impression, and commit — without structuring what the listing actually tells them, or identifying what it leaves out.
FlatSix Intelligence sits between finding a car you like and booking a physical inspection. We structure what is there and highlight what is not — so you arrive already knowing the right questions to ask.
PriceFactual context: factors that would support a higher price, and factors that weigh against
SpecEvery claimed option verified against the model’s known configuration
RiskHistory signals, ownership patterns, and generation-specific issues flagged
InspectionTailored checklist of exactly what to verify when you see the car in person
Sample Report
Every report follows the same structure
Five sections covering the vehicle overview, full specification audit, history and risk review, price context, and a tailored inspection checklist — specific to the car you submitted.
Same £29 price. Two report depths depending on whether you provide a vehicle registration at order.
Standard Report£29
Vehicle overview
Full specification audit
History and risk review (with server-derived risk tier)
Price context (factors that support or weigh against the asking price)
Tailored inspection checklist
Listing photos
Full Report — VRN Provided£29
Vehicle overview
Full specification audit
History and risk review (with server-derived risk tier)
Price context (factors that support or weigh against the asking price)
Tailored inspection checklist
Listing photos
DVLA Registration Record
MOT History
Mileage-over-time chart
Pulled from official government data
Sample reportexample output for an order with a vehicle registration provided
Sample shows one of four listing photos. Reports include all photos retrieved from the listing.
01 Overview
This 2020 Porsche 911 Turbo S (992) is powered by a 3.8-litre twin-turbocharged flat-six producing 650bhp, paired with the 8-speed PDK transmission and all-wheel drive. Finished in Black with full leather, the car carries BOSE Surround Sound, electric sunroof, LED Matrix headlights with PDLS Plus, and ParkAssist with reversing camera as paid factory upgrades. The dealer listing in Guildford states full Porsche service history with Porsche warranty until May 2027. However, three independent risk signals materially affect the transaction: DVSA MOT records show a mileage rollback between the 2023 and 2024 tests, the vehicle check returns an outstanding private finance marker, and the listing contradicts itself on previous owner count.
This car presents BOSE Surround Sound, sunroof, LED Matrix headlights with PDLS Plus, and ParkAssist as value-driving paid upgrades.
03 History & Risk
Mileage DiscrepancyVerify
DVSA records show a mileage rollback between the July 2023 MOT (24,500 mi) and the January 2024 MOT (20,858 mi) — the odometer recorded a value 3,642 miles lower at the second test. This is a material indicator of clocking. Obtain mileage warranty from seller and request all service records to triangulate true mileage.
DVLA Registration Record
RegistrationLS20 SMP
DVLA makePorsche
DVLA colourBlack
Year of manufacture2020
First registeredJuly 2020
Fuel typePetrol
Engine capacity3745cc
MOT statusValid
MOT expiry2026-04-03
Tax statusTaxed
Marked for exportNo
Euro statusEURO 6AP
Source: DVLA Vehicle Enquiry Service. Retrieved at time of report generation.
MOT History
3 tests recorded — 3 pass, 0 fail. Latest test 2025-04-04: PASS.
2025-04-04PASS21,696 mi · Advisory: nearside front tyre worn close to legal limit (3mm).
2024-01-26PASS20,858 mi · Top defects: none.
2023-07-11PASS24,500 mi · Top defects: none.
Source: DVSA MOT History API. Retrieved at time of report generation.
Mileage Over Time
MOT mileageCurrent listingRollback flag
Reference line: 5,000 mi/year sports-car typical, anchored at first registration. Source: DVSA MOT History API.
Service historyConfirmed
Outstanding financeSettlement required
Previous ownersListing contradicts itself
WarrantyConfirmed to May 2027
Accident historyNo write-off markers
Buyer ProtectionConfirmed
Dealer sale. Statutory consumer protections apply that differ materially from private sales — buyers should familiarise themselves with the specific rights applicable to their transaction. A pre-purchase inspection remains advisable.
High Risk
Three independent risk signals: DVSA mileage rollback between MOTs (24,500 → 20,858), outstanding private finance marker on the vehicle check, and owner count contradiction in the listing description. All three require resolution before any purchase decision on a £134,995 transaction.
04 Price Context
Asking price: £134,995
Factors that would support a higher price
BOSE Surround Sound System fitted
Sunroof fitted
LED Matrix headlights with PDLS Plus fitted
ParkAssist with reversing camera fitted
Factors that would weigh against
Mileage rollback between the July 2023 and January 2024 MOTs — materially undermines provenance.
Outstanding private finance marker on the vehicle check — settlement required before clear title.
Owner count contradiction in the listing description (states both “1” and “two owners since new”).
Buyers should check comparable 992 Turbo S examples on AutoTrader and PistonHeads filtered by mileage and ownership count before forming a view on price.
05 Inspection Checklist
Obtain mileage warranty from seller in writing — DVSA rollback between July 2023 and January 2024 MOTs requires explicit declaration
Confirm outstanding finance settlement figure with finance company before exchange — clear title required
Resolve owner count contradiction — listing states both “1” and “two owners since new”, obtain V5C history
Inspect turbo wastegate operation — 992 Turbo S variable geometry turbos prone to rattle, replacement £3,000–£5,000 per turbo
Replace nearside front tyre — advisory at most recent MOT (3mm), close to legal limit
Detail reference
FlatSix IntelligenceThis report provides factual analysis. It is not buying advice.
Five sections of structured analysis for the car you’re considering. Delivered to your inbox in minutes.
Your report sits between finding a car and booking a physical inspection. It tells you whether the car is worth your time — and exactly what to verify when you get there.
Structured, not subjective
Green flags, amber flags, and factual price drivers — clearly separated. This is factual analysis, not buying advice. The report gives you the information to make your own decision.
Model-specific depth
Generation splits, known issues, specification hierarchies, option desirability. Built on deep knowledge of what makes each 911 variant worth scrutinising.
Know the car before you commit
Listings contain more information than most buyers extract. The gaps they leave contain even more.
