The Good The standard air suspension in the 2012 Mercedes-Benz CLS550 delivers a very comfortable ride, and the Harman Kardon audio system reproduces music with excellent fidelity. Adaptive cruise control, blind-spot detection, and lane departure systems all work very well.
The Bad The engine creates uneven acceleration in certain power bands.
The Bottom Line Mercedes-Benz bolsters its reputation for luxury with the 2012 CLS550. A powerful and efficient engine propels this sleek ride, and there are a number of advanced driver-assistance features.
2012 Mercedes-Benz CLS550
The 2012 Mercedes-Benz CLS550 is one of the sleekest car designs on the road. You might mistake it for a big drop of liquid mercury flowing down the highway. Mercedes-Benz did an excellent job maintaining a low, nicely curved roof and molding the rear fenders into its sides. If you don't want people stopping to admire your car, the CLS550 is not for you.
As an update of one of Mercedes-Benz's big sedans, the CLS550 sports a new engine making its way down the lineup of all Mercedes-Benz 550-designated cars, a direct-injection V-8 with twin turbos. This engine, and a new seven-speed automatic, combine for surprisingly good fuel economy. The car also comes standard with an air suspension, giving it one of the most comfortable rides around.