2013 Infiniti M56 sedan compare

The 2013 Infiniti M56 is plenty powerful, but its true strengths are its safety and its cabin. Save your money and opt for the smaller engine.

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 conservatively styled 2013 Audi S6 Quattro is a high-tech sport sedan that makes few compromises where cabin technology, on-road performance, and optional safety features are concerned.