2021 Subaru WRX STI 2.5L Petrol · AE70 EXP

The 2021 Subaru WRX STI presents a clean and stable maintenance trend across its entire MOT history. The most recent test on 3 June 2025 at 16,033 miles passed with zero defects, continuing a flawless record that spans all three recorded tests. No advisories, failures, or recurring mechanical issues appear in the DVSA data, indicating consistent upkeep and no emerging faults. The mileage pattern is notably low for a five-year-old performance saloon. The vehicle accumulated 8,476 miles by May 2023, 10,224 miles by May 2024, and 16,033 miles by June 2025. That final year saw an unusually rapid jump of 5,809 miles, nearly matching the total of the preceding four years combined. This suggests a shift from prolonged periods of light use or standing to more regular driving. The overall average of roughly 3,207 miles per year remains well below typical annual figures, which can mean reduced consumable wear but also raises questions about extended idle periods affecting seals, brakes, and fluid condition. Despite the clean MOT record, a buyer should still inspect the underside for corrosion on suspension components, subframes, and brake lines, as Subaru boxer engines and AWD drivetrains can suffer from moisture ingress and corrosion during long stationary periods. The rear calipers and handbrake mechanisms deserve close attention, as WRX models are prone to binding when not driven regularly. Tyre age and sidewall condition should be checked even if tread depth remains legal, given the low annual mileage and potential for perished rubber from age rather than wear. The engine oil, coolant, and brake fluid should be verified for freshness, as infrequent use can lead to moisture contamination and degraded lubrication. A test drive should focus on gearbox smoothness, clutch bite point, and any drivetrain vibrations that might indicate neglected CV joints or differential issues. The clean MOT history is encouraging, but the unusual mileage pattern means physical inspection remains essential to confirm the car matches its paper record.