Renntech is a Florida

Florida

Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 company established in 1989 by Hartmut Feyhl. It is best known for performance modifications of Mercedes-AMG

Mercedes-AMG

Mercedes-AMG GmbH, commonly known as AMG, is a subsidiary of the Mercedes-Benz car company specializing in high-performance luxury cars....

 automobiles.

Feyhl had spent 12 years at AMG well before the tuning company became part of Mercedes-Benz

Mercedes-Benz

Mercedes-Benz is a German manufacturer of automobiles, buses, coaches, and trucks. Mercedes-Benz is a division of its parent company, Daimler AG...

 in 1999, serving as that company's North American technical director and acting as a driving force behind the AMG Hammer—an iconic early 1990s automobile which was, for a time, the fastest production sedan on Earth, with a top speed approaching 300 km/h.

Over the years, Feyhl and company have developed high-performance products for virtually all Mercedes-Benz AMG vehicles (including the commercial Mercedes Sprinter van).