AC Schnitzer has just unveiled their new modifications package for the new 2009 Mini Cooper R57 Convertible.Visually, Schnitzer added a new front spoiler, a new rear skirt, various decals, chrome sports exhaust system, and a variety of wheel and tire combinations. Inside, AC Schnitzer is offering a set of aluminum pedals, velour floor mats and a aluminum gear knob. AC Schnitzer has unveiled their new package for the MINI Cooper R57 Cabriolet. AC Schnitzer MINI Cooper R57 convertible offers an engine upgrade package which boosts the MINI Cooper S’ 175 hp rating to 208 hp (226 hp for export models). AC Schnitzer MINI Cooper R57 also comes with a limited slip differential, a height.