AVOIR rates the 2009 Porsche 911 Turbo's reliability 5/100 — below average — from NHTSA recall counts, complaint density, and multi-year defect trends. Its overall AVOIR ownership score is 42/100 (Poor).
AVOIR scores the 2009 Porsche 911 Turbo's longevity 43/100 (below average), estimated from high-mileage survival data and resale-panel evidence of how far these vehicles actually run.
AVOIR scores the 2009 Porsche 911 Turbo on maintenance 46/100 and depreciation 80/100 — higher is better (lower real cost) — plus fuel, insurance and resale in the full breakdown above.
AVOIR scores every vehicle across 7 ownership factors using EPA fuel-economy data, NHTSA safety & complaints, IIHS ratings, and a proprietary used-market resale panel.