BMW M3 Thunderstorm with 500HP Supercharged V8

Germany's ATT-TEC has developed a new performance package for the latest generation BMW M3 models. The main event of the firm's tune is 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 €11,749 or about US$ 17,600, including installation.

The package also bundles a KW coilover suspension Variant 3 priced at €2,029 (US$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 €3,475 (US$5,200).

The tire set is completed by 20 mm distance washers (€393 or US$586) on the front and rear axles.