Germany’s ATT-TEC has developed a new performance package for the latest generation BMW M3 models with the main features the addition of a compressor and a unique exhaust system that give the M3′s 4.0-liter V8 engine an 80HP boost for a total output of 500 horsepower. ATT said that the price for engine retrofitting is $17,600, including installation. The package also bundles a KW coilover suspension Variant 3 priced at$3,050 and 20-inch alloy wheels wrapped in Michelin Pilot Sport 2 rubber size 245/30 ZR20 up front and 285/25 ZR20 at the back for a total cost of $5,200. An interior styling kit with carbon fiber parts or for the more adventurous, decorative Swarovski crystals, is offered as an option.