2014 BMW M6 4.4L Petrol · YB64 GZP

The 2014 BMW M6 presents a stable and improving maintenance trend, with its most recent MOT conducted on 18 August 2025 at 140,407 miles passing cleanly with zero defects recorded. This marks three consecutive flawless annual tests following a single failure in July 2023. The trajectory is clearly positive: the car has moved from a rectified structural defect to a sustained period of defect-free compliance, suggesting attentive ownership and consistent upkeep over the past three years. The mileage accumulation pattern is broadly consistent with typical use for a twelve-year-old performance GT. Between the July 2022 test at 113,921 miles and the August 2025 test at 140,407 miles, the car covered approximately 26,486 miles across three years, averaging roughly 8,829 miles per annum. This sits slightly below the overall lifetime average of around 11,701 miles per year, indicating the current keeper has used the car moderately rather than sparingly or excessively. The gap between the 2022 and 2023 tests shows a jump of roughly 16,200 miles in twelve months, which is the most intensive annual period on record, but subsequent years have settled into a steadier rhythm. No suspicious mileage anomalies or long dormant periods are evident. The sole defect on file is instructive. On 5 July 2023 at 130,127 miles, the tester flagged a fractured or broken nearside rear coil spring, a failure classified under item 5.3.1 (b) (i) as a direct MOT failure point. The car was retested just six days later on 11 July 2023 at 130,132 miles and passed, confirming the spring was replaced promptly. A broken coil spring on a heavy, high-powered saloon like the M6 is not a trivial consumable issue; it compromises ride height, handling geometry, and can damage adjacent suspension components if left unresolved. The swift rectification and subsequent three-year clean record suggest the repair was done properly rather than bodged. A buyer inspecting this car in person should focus on the rear suspension area, checking for even ride height side to side, listening for clunks or knocks over broken surfaces, and examining the condition of both rear coil springs for any signs of sag, cracking, or corrosion at the mounting points. Given the car's performance specification and 140,000 miles of use, the front suspension bushes, drop links, and anti-roll bar links also warrant close inspection. Brake discs and pads across all corners should be measured, as M6-specification components wear faster than standard units. Underneath, check the subframes and suspension mounting areas for corrosion, particularly if the car has spent time in salted winter roads. The clean recent MOT record is encouraging, but a pre-purchase inspection by a BMW specialist remains the sensible course for a vehicle of this value and complexity.