Carlsson is a German car tuning manufacturer specialising in Mercedes-Benz cars. The Carlsson tuning house was founded by brothers Rolf and Andreas Hartge in 1989. Carlsson's products are available for the entire current range of Mercedes-Benz models including the R-Class, SL-Class, C-Class and the GL-Class along with many others. The company is most popular for its range of alloy wheels. Through a new importer Carlsson began a more aggressive push into the US market in 2006 after debuting their newly modified CL500 (Euro-spec) vehicle at the 2006 SEMA Show. In their review, Modified Luxury & Exotics magazine said, "... the CL is starting to resemble something more in line with a Bentley Continental - even if it is a little shy when it comes to horsepower."