Two things have been around for a long time, Mercedes Benz and Performance Tuning. The two also share intertwined histories as companies such as AMG, Brabus, Renntech, and Lorinser were born and continue to adapt the latest technology to factory Benz models. There are hundreds of tuning companies and race shops throughout the country, but telling them apart can be difficult. Most do not build their own parts, but rather perform the mechanical work for you to add aftermarket exhausts, ECU upgrades, and turbochargers. Some offer full service tuning and testing, but currently there is only one that is attempting to push a natural-gas powered Mercedes to a land speed record.

Speedriven is a Chicago-based firm that is currently working with Bernie Towns to develop this ?green? record breaker. Towns? is an engineer for HighMount Exploration and Production and the companies main focus is natural gas energy. Many of your home appliances, such as the water heater and stove, may run off natural gas, but did you ever think your car would? Actually, Utility and Transportation departments throughout the country have been using natural gas in everything from construction equipment to buses for years; which have helped to reduce costs and improve air quality[...]

Source: topspeed Tuning