The next-generation Mercedes-Benz CLS AMG has been again spied testing at the ring. The AMG version has been caught a number of times, but these are the best pictures so far.
Sales of the CLS 63 AMG should begin in 2011. Segment rivals will include the new Porsche Panamera Turbo and the high-performance version of Aston Martin's new Rapide. Audi will also enter this four-door coupe segment with the A7.
