Mercedes-Benz redesigned its smallest sports car for 2005, giving the retractable-hardtop SLK-Class roadster a 3.5-liter V-6. Formula One racing cars and automaker's SLR McLaren supercar inspired styling on SLK-Class. It is offered in SLK280, SLK350 SLK55 AMG variants, they carry relatively unchanged 2007.