Mercedes-Benz has whipped up a special edition of its SLS AMG GT3 customer racecar to mark the 45th anniversary of the very first SL model. The company plans to build no more than five examples, each stitched together by hand in Affalterbach. Each of the bruisers will come with a special magno graphite matte paint slathered over carbon fiber bodywork. The racer wears a composite hood, trunk lid, aero work and doors. Jump inside, and the SLS AMG GT3 45th Anniversary offers a full race cage painted to match the vehicle’s exterior as well as carbon-shell seats for both the driver and co-driver.