2015 BMW I8 1.5L Hybrid electric · T4 XEO

The most recent MOT test on June 12, 2026, confirms the vehicle remains roadworthy, though with critical tyre tread concerns at both rear wheels. The near-legal limit readings (5.2.3 (e)) indicate a pressing need for immediate replacement, as further use risks illegal tread depths and uneven wear patterns. While no major mechanical defects were recorded in this cycle, the recurring tyre advisories suggest a pattern of deferred maintenance—particularly if previous owners overlooked tread depth checks. The windscreen history, though non-critical in the latest test, warrants scrutiny: the 2024 failure for wiper ineffectiveness and blade defects implies either neglect or a lack of proactive replacement. Overall, the trend is stable in terms of structural integrity but reveals inconsistent attention to consumable components. Mileage progression shows a consistent average of approximately 9,772 miles annually, which aligns with typical usage for a vehicle of this age. The gaps between tests—most notably the 13-month interval between the 2025 and 2026 MOTs—are standard for high-mileage vehicles, though the rapid accumulation between the 2023 (75,887 miles) and 2024 (88,667 miles) tests suggests either intensive use or a period of deferred servicing. There are no red flags in the mileage pattern itself, but the absence of service records complicates assessment. The 2024 failure at 88,583 miles, just five days before passing at 88,667 miles, hints at a rushed or incomplete pre-test correction rather than a sudden mechanical issue. A buyer should prioritise an independent inspection of the rear tyres, confirming they have been replaced since the June 2026 test and checking for uneven wear or sub-surface damage. The windscreen and wiper system require thorough examination: the 2024 defects indicate potential corrosion or improper fitting, which could recur. Given the vehicle’s age and hybrid/electric drivetrain complexity, the suspension bushes, coil springs, and binding calipers should be visually inspected for wear, while the brake discs and pads—particularly at the rear—demand assessment for uneven thickness or glazing. The absence of structural corrosion advisories is reassuring, but a close inspection of wheel arches, sills, and underbody panels is advised to rule out hidden deterioration. The 2026 MOT’s clean bill for emissions and structural integrity does not obviate the need for these checks, given the tyre and wiper history.