2010 Mercedes-Benz S400 Hybrid compare

If you can pay for the gas, the 2009 Mercedes-Benz S550 has many features to recommend it, and offers an incredibly comfortable ride, but don't expect it to play well with your personal electronics.

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.

The 2012 Tesla Model S sets a new standard for cars of the 21st century by integrating cabin tech equal to anything from the consumer electronics industry and incorporating a long-range, powerful, and efficient electric drivetrain.

The 2014 Acura RLX makes a game attempt at being a high-tech roller, but suffers from flaws serious enough that they should send Acura back to the drawing board.