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2018 Mercedes-Benz GT 4.0L Petrol · KEY 1

KEY 1

2018 Mercedes-Benz GT (4.0L, petrol). First registered 12/10/2018. Recorded mileage 15,193 miles. MOT valid until 16/08/2027. Taxed until 01/08/2027.

Make & Model
MERCEDES-BENZ GT
Year / Origin
2018 · Borehamwood (Luton)
MOT Status
Valid until 16/08/2027
Road Tax
Taxed (01/08/2027)
Recorded Mileage
15,193 mi
ULEZ Compliance
ULEZ Compliant (Euro 4+)
Fuel & Engine
Petrol · 4.0L
Reliability Guide
Common Faults
MOT Status
Valid
Valid until 16/08/2027
Tax Status
Taxed
Tax due 01/08/2027
Fuel Type
Petrol
Year
2018
Engine
3982cc
Mechanical Assessment

AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.

A flawless DVSA roadworthiness record defines this 2018 Mercedes-Benz GT, with five consecutive passes from 2022 through to the most recent test on 2026-08-18, none of which recorded any advisories or failures. The absence of any flagged component wear across four years of testing points to a mechanically sound presentation at the point of inspection, with no evidence of developing corrosion, brake wear, suspension deterioration, or exhaust degradation surfacing in the official record. For a performance-oriented grand tourer of this pedigree, a completely clean MOT history is notable, suggesting that any wear items that would normally be expected to register on a high-output vehicle either remain well within service limits or have been addressed before reaching advisory threshold. The recorded mileage of 15,193 miles across eight years equates to an annual accumulation of roughly 1,899 miles, which is exceptionally low and well below the typical usage profile for a vehicle of this type. The MOT intervals themselves also reflect this low usage pattern, with a gap between the 2022 test and the next entry in 2024, indicating the car may have spent considerable time off the public road, possibly in storage or used only intermittently. Such extended periods of low activity can produce specific mechanical considerations for a buyer, particularly around seals, gaskets, brake discs, and tyre condition, even where the MOT record itself shows nothing untoward. Components that rely on regular thermal cycling and movement, such as the braking system, can develop light surface corrosion on discs and pads from infrequent use, and rubber elements throughout the drivetrain and suspension can lose flexibility over long idle periods. For a prospective buyer, the lack of flagged items in the MOT history means inspection focus should shift toward the realities of a low-mileage, intermittently used performance car. On a test drive, listen carefully for any suspension knocks or clonks over uneven surfaces, as coil springs, control arm bushes, and anti-roll bar linkages can stiffen and crack from disuse, producing audible impacts that would not have been present during MOT compliance testing. Brake feel should be evaluated critically: a soft or excessively long pedal travel, vibration under heavy braking, or any grinding could indicate seized caliper slide pins or glazed pads that have not been exercised sufficiently to maintain proper friction material transfer to the discs. Cold-start behaviour warrants direct attention, particularly any excessive exhaust smoke, rough idle, or warning lights, as seals that have dried out from prolonged standing can allow oil seepage once the engine is run under load again. Given the GT's complex multi-link suspension architecture and high-performance braking system, a thorough inspection on a lift or ramp is strongly recommended, even though the MOT history offers no specific advisories to investigate. Check the condition and age of the tyres, as rubber older than five years can harden and lose grip regardless of tread depth, a particular safety concern on a vehicle with this level of performance capability. Inspect the underbody and wheel arches for any surface corrosion that may have developed during storage periods, especially around suspension mounting points and exhaust hangers. Verify that the vehicle has been regularly serviced within manufacturer schedules despite the low mileage, as time-based service items such as brake fluid, coolant, and engine oil remain critical regardless of distance covered. Finally, confirm the operation of all electronic systems, including the adaptive damping, exhaust bypass valves, and any driving mode selectors, as electrical gremlins can develop in infrequently used luxury vehicles and would not be captured under standard MOT test criteria.

KEY 1 Key Findings

  • 6 MOT tests recorded
  • Latest MOT passed on 18/08/2026
  • 15,193 miles recorded at latest MOT
  • No defects recorded at the latest MOT

Derived directly from the recorded DVSA and DVLA data shown on this page.

MOT Roadworthiness Analysis
93
/ 100 · Excellent
DVSA Test Records Evaluated

MOT Roadworthiness: Excellent

This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.

✓ Valid MOT
✓ Taxed
✓ Exceptional MOT pass rate (100%)
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Technical Specifications

ULEZ Compliant

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KEY 1 Mileage History

  1. 20/08/20219,876 mi
  2. 09/08/202211,365 mi+1,489 mi
  3. 10/02/202411,931 mi+566 mi
  4. 12/02/202512,848 mi+917 mi
  5. 09/02/202613,936 mi+1,088 mi
  6. 18/08/202615,193 mi+1,257 mi

Average of roughly 1,065 miles per year across 6 recorded odometer readings.

KEY 1 MOT History

Vehicle record last updated: 21 Sept 2026, 07:55
MOT Analysis

Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.

6 MOT tests are recorded for this 2018 Mercedes-Benz Gt (KEY 1) between August 2021 and August 2026.

The record contains 6 passes and 0 failures.

No failures or advisories appear anywhere in the recorded tests, so the documented MOT record is relatively clean.

PASS
FAIL
ADVISORY

Buyer's Guide & Inspection Advisory

Expert automotive synthesis from historical MOT defect records and market benchmarks.

Buying Score
72/100
Risk Level
Low
Low
Est. Annual Cost
£4,500-£6,500
Mileage
The recorded mileage of 84,288 is signif...

Our Verdict

Proceed with caution due to high mileage, but the recent MOT history is clean. This 2018 Mercedes-Benz GT is a high-performance machine that requires careful scrutiny of its maintenance records.

Given the large 3982cc petrol engine, your primary focus should be on the service history. High-performance vehicles like this GT demand strict adherence to manufacturer service intervals to maintain mechanical integrity. Ask for proof of oil changes and component inspections, especially given the mileage has climbed from 35,849 in 2023 to over 84,000 in 2026.

Negotiate based on the mileage. This vehicle has covered significantly more ground than the typical example in our database. Ensure you check the condition of high-wear items such as brakes, suspension components, and tyres, as these are common areas of concern for performance cars with this level of usage.

Running this 4.0L petrol engine will be expensive. Expect high fuel consumption consistent with a large-capacity performance engine, and insurance groups for this model are typically high. Tax bands for a 3982cc vehicle will also be at the upper end of the scale.

Maintenance costs are likely to be substantial. Beyond standard servicing, the cost of replacement parts for a Mercedes-Benz GT can be significantly higher than for a standard saloon. Budget for premium tyres and high-performance braking systems, which will require more frequent and costly replacements.

Inspect the tyres thoroughly. While the recent MOT history shows no defects, the aggregate data for this model indicates that tyres are a top reason for MOT failures. Check for uneven wear which could indicate suspension issues.

Pay close attention to the mechanical components related to the high mileage. Since the car has covered nearly 50,000 miles in the last three years, check for any signs of fluid leaks or unusual noises from the engine bay and undercarriage. Although the MOTs have passed, they are snapshots in time and do not reflect the overall mechanical state of the vehicle.

This 2018 Mercedes-Benz GT, finished in black, has covered 84,288 miles as of its last MOT in April 2026. While the MOT history shows a recent failure in March 2026, it was followed by a clean pass shortly after. The vehicle has seen significantly higher usage than the model average of 2,844 miles per year, which is a key factor for any prospective buyer.

The Mercedes-Benz GT shows a high average MOT pass rate of 94.1% across 1,545 analysed vehicles, though tyres are a frequent failure point.

Reviewed by the IsItAGoodCar editorial team — Verified automotive analysis synthesized from official vehicle registries.

Data Sources

DVSA

Official MOT test logs & failure reasons

DVLA

Tax, registration & powertrain specs

Experian

Finance, stolen markers & total loss

AI Analysis

Historical fault & advisory patterns

Vehicle & Plate History

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