2021 BMW M4 Competition Auto 3.0L Petrol · LP21 HHC

The BMW M4 Competition presents a stable and consistently clean roadworthiness record. The most recent MOT, conducted on 7 February 2026 at 26,090 miles, passed with zero defects, advisories, or failures. This marks three consecutive flawless annual tests, indicating no recurring mechanical faults or emerging structural concerns over the past two years. The mileage accumulation is notably low for a 2021 vehicle. Between the February 2024 test at 21,899 miles and the February 2025 test at 24,169 miles, the car covered 2,270 miles. That figure rose to 1,921 miles between February 2025 and February 2026. Annual usage sits at roughly 2,000 to 2,300 miles, well below the UK average. While low mileage reduces wear on consumables, extended periods of short journeys or standing can cause its own issues, particularly with DPF regeneration on a petrol direct-injection engine like the S58, brake disc surface corrosion, and tyre sidewall deterioration from age rather than tread wear. Despite the clean MOT history, a physical inspection should focus on areas the MOT does not fully assess. The M4 Competition's high-performance braking system demands close scrutiny of inner brake disc edges and pad thickness, as surface corrosion from light use can cause uneven pad deposits even when discs appear serviceable. Suspension bushes and adaptive dampers should be checked for perishing, particularly if the car has spent long periods stationary. The run-flat tyres fitted as original equipment age harden before they show tread wear, so sidewall condition and manufacture date codes deserve attention regardless of remaining tread depth. Underneath, inspect the subframes and suspension mounting points for any signs of corrosion, especially if the car has been garaged but rarely washed. The dual-clutch automatic transmission should be evaluated for low-speed clutch judder, a known characteristic of the M-DCT unit under light-load urban driving. A clean MOT record is reassuring, but the true condition of a low-mileage performance car depends heavily on how it was driven and stored, not just how many miles it has covered.