Porsche 911 Turbo (997) vs BMW M3 (F80)
Side-by-side reliability, price, and known-issue comparison for used-car buyers. Composite scores come from TÜV (Germany), ADAC (pan-European), NHTSA (US-sold variants), and DVSA MOT (UK inspections).
P
Porsche 911 Turbo (997)
2008–2008
Reliability composite
89
/ 100
Excellent
AUTOBILD + NHTSA + WARRANTYWISE
Estimated used price
€9,800–€9,800Documented issues
3
• Clutch wear (manual) — €2,000
• Coolant pipe failure — €1,500
⭐ Better composite reliability
B
BMW M3 (F80)
2016–2016
Reliability composite
100
/ 100
Excellent
NHTSA
Estimated used price
€15,800–€15,800Documented issues
1
• Rod bearing wear — €2,000
Bottom Line
The BMW M3 (F80) wins on composite reliability across TÜV, ADAC, NHTSA, and DVSA MOT data — typically a sign of lower ownership risk and fewer recurring failure modes at age. The other car isn't necessarily wrong; check its issue list and price-to-condition ratio before deciding.