Renntech is a
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, a ...
company established in 1989 by Hartmut Feyhl. It is best known for performance modifications of
Mercedes-AMG
Mercedes-AMG GmbH, commonly known as AMG, is the high-performance subsidiary of Mercedes-Benz AG. AMG independently hires engineers and contracts with manufacturers to customize Mercedes-Benz AMG vehicles. The company has its headquarters in Af ...
automobiles.
Feyhl had spent 12 years at AMG before the tuning company became part of
Mercedes-Benz
Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquarter ...
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-Benz Sprinter
The Mercedes-Benz Sprinter is a light commercial vehicle (van) built by Mercedes-Benz Group AG of Stuttgart, Germany as a large van, chassis cab, minibus, and pickup truck. In the past, the Sprinter had been sold under the Mercedes-Benz, Dodg ...
van). While most famous for Feyhl's powerful engines, pizza-sized brake kits, and sporting suspension know-how, Renntech is in fact a full-line aftermarket supplier that offers everything from shift knobs and steering wheels to complete cars - most notable among these are the 200 mph Renntech E7.4RS (which was called fastest sedan in the world by
Car and Driver
''Car and Driver'' (''CD'' or ''C/D'') is an American automotive enthusiast magazine. In 2006 its total circulation was 1.23 million. It is owned by Hearst Magazines, who purchased prior owner Hachette Filipacchi Media U.S. in 2011. It was f ...
in 1996) and the 2006 "Chrome SL" showcar—an SL-based project entirely covered in chrome.

Following the 1998 merger of Daimler-Benz and Chrysler Corp. (which became
DaimlerChrysler
The Mercedes-Benz Group AG (previously named Daimler-Benz, DaimlerChrysler and Daimler) is a German multinational automotive corporation headquartered in Stuttgart, Baden-Württemberg, Germany. It is one of the world's leading car manufactur ...
later), Renntech began expanding into the Chrysler category, beginning with the
Chrysler Crossfire
The Chrysler Crossfire is a rear-wheel drive, two-seat sports car that was sold by Chrysler and built by Karmann of Germany for the 2004 to 2008 model years.
Developed during the union of Daimler and Chrysler, the two-seater is based on the ...
, a car based heavily on
Mercedes-Benz SLK
The Mercedes-Benz SLK-Class is a compact executive roadster, produced by Mercedes-Benz. It was released in 1996 and was built at the Mercedes plant in Bremen, Germany, until the end of production in 2020.
The former name "SLK" was derived from ...
components. It was logical move as Chryslers began to utilize more Mercedes-Benz parts, more of Renntech's components became compatible.
More recently, however, Renntech has begun to offer products for other marques as well - specifically product for
Porsche,
Volkswagen
Volkswagen (),English: , . abbreviated as VW (), is a German motor vehicle manufacturer headquartered in Wolfsburg, Lower Saxony, Germany. Founded in 1937 by the German Labour Front under the Nazi Party and revived into a global brand post ...
, and
Audi
Audi AG () is a German automotive manufacturer of luxury vehicles headquartered in Ingolstadt, Bavaria, Germany. As a subsidiary of its parent company, the Volkswagen Group, Audi produces vehicles in nine production facilities worldwide.
The o ...
vehicles. These product offerings, while less exhaustive than Renntech's Mercedes offerings, focus on Renntech's core competencies: engine tuning, braking, and suspension, with an emphasis on the higher-end Audis and Porsche SUVs.
Historically, Renntech has been a prominent Mercedes-Benz specialist, and Feyhl himself is regarded by many as the USA's foremost authority on Mercedes tuning. Renntech's high-performance cars are often featured on the covers of major automotive magazines, including
Car and Driver
''Car and Driver'' (''CD'' or ''C/D'') is an American automotive enthusiast magazine. In 2006 its total circulation was 1.23 million. It is owned by Hearst Magazines, who purchased prior owner Hachette Filipacchi Media U.S. in 2011. It was f ...
br>
eMercedesBen
Motor Trend
''MotorTrend'' is an American automobile magazine. It first appeared in September 1949, and designated the first Car of the Year, also in 1949.
Petersen Publishing Company in Los Angeles published ''MotorTrend'' until 1998, when it was sold to ...
br>
AutoWeek
''Autoweek'' is a car culture publication based in Detroit, Michigan. It was first published in 1958 and in 1977 the publication was purchased by Crain Communications Inc, its current parent company. The magazine was published weekly and focused ...
br>
Modified Luxury & Exotics and others. In a feature article on
Ray Durham
Ray Durham (born November 30, 1971) is a former Major League Baseball second baseman. He is a 14-year major league veteran owning a .277 lifetime batting average with 1,249 runs scored, 2,054 hits, 440 doubles, 79 triples, 192 home runs, 875 r ...
's Renntech modified SL55, Modified Luxury & Exotics refers to Renntech as one of the foremost Mercedes-Benz tuners in the world.
Renntech Karting
Renntech Karting is a division that makes racing
kart
Kart racing or karting is a road racing variant of motorsport with open-wheel, four-wheeled vehicles known as go-karts or shifter karts. They are usually raced on scaled-down circuits, although some professional kart races are also held on fu ...
s, based on the Aixro XR50 rotary engines.
List of RENNtech vehicles
Mercedes-Benz
*SLR McLaren
*SLR McLaren 777 Concept
*190E 3.6L W201 (1990)
*C74 Konzept W204
*SL600 R230
*S550 W222
*S550 W221
*S600 W220
*CL65 AMG W216
*CL500 K W216
*CLS55 AMG W219
*E7.4RS W210
*S700 Coupe C140
*SLR7.4 R129
*E63 AMG W211
*CLK55 AMG W209
*SLK32 AMG R170
*SLK55 AMG R171
*C38 W203
*C43 AMG W202
*C55 AMG W203
*C63 AMG W204
*G500 W463
*GL 550 X164
*GLK350 Hybrid Pikes Peak (2009)
*ML 60 W163
*ML 550 W164
*Sprinter (2008)
*500E W124
Smart
*smart fortwo (2009)
Maybach
*Maybach 62
AIXRO
*SLR.Kart
References
{{Reflist
External links
Official websiteRenntech Karting site
Auto parts suppliers of the United States
Companies based in Palm Beach County, Florida
Automotive motorsports and performance companies
Mercedes-Benz