1. Mercedes E63 AMG
The winner of the title of fastest luxury car goes to the Mercedes E63 AMG. This car is an absolute monster, and yet still has the refined touch of luxury and comfort you would expect from a Mercedes-built vehicle. The E63 AMG sports an identical 5.5-liter biturbo V8 engine to the S63, but is smaller and lighter, therefore making better use of its power. This car can dash to 60 miles per hour in just 3.5 seconds, putting it ahead of the competition by just a hair.
2. Porsche Panamera Turbo S
Purists howled when Porsche revealed the Panamera Turbo S, much in the same way they did when Porsche introduced the Cayenne. However, the company was careful to ensure that it was a Porsche through-and-through; the Turbo S variant of the Panamera can absolutely blister the pavement with a 0-60 time of 3.6 seconds and a top speed of 192 miles per hour. It also makes 570 horsepower from a 4.8-liter V8, in addition to up to 590 pound-feet of torque.