Porsche 911 Resale/Retained Value
Looking at the 5-year depreciation rate, the Porsche 911 Carrera S and the Porsche 911 Carrera 4S both lose 26.7 percent of their value.
Porsche 911 Quality Rating
The iSeeCars Overall Quality rating for the Porsche 911 is 8.2 out of 10. Porsche 911 is ranked 1 out of 26 Best Luxury Convertibles based on its reliability, retained value, and safety ratings. Out of 40 Best Luxury Sports Cars, the Porsche 911 is ranked 2 and the Porsche 911 is ranked com.omnisee.entity.bestcars.BestCarsQualityRanking@4fb21d04 based on its reliability, retained value, and safety ratings.
Porsche 911 Reliability Rating
iSeeCars' Reliability Rating for the Porsche 911 is 7.9 out of 10.
Engine Power and Fuel Efficiency Comparison
For engine performance, the base engine of both the Porsche 911 Carrera S and the Porsche 911 Carrera 4S makes 443 horsepower. Both the Carrera S and the Carrera 4S are rated to deliver an average of 20 miles per gallon, with highway ranges of 389 and 405 miles respectively. Both models use premium unleaded.