RENNtech E63 S AMG Shatters Quarter-Mile Record

Just when you thought Mercedes-AMG built the ultimate E63, RENNtech has allowed it to reach its full potential. At a recent testing session at Palm Beach International Raceway, they set a new record for the 4MATIC equipped E63 S. The unassuming sedan has their Stage 1 kit, which consists of new turbos, ECU, exhaust, and a new fuel system.