Magna Car Top Systems (CTS) is a supplier of convertible tops. Having been a subsidiary of Porsche for an extensive period, that company agreed to sell it to Magna in late 2005 for roughly $470,000,000. Current production of roofmodules CTS has produced roofmodules for the following vehicles: Audi A5 (2009) Cadillac XLR (2004) Chevrolet Corvette Ferrari F430 Mercedes SLK (R170 & R171) (1998) Mercedes-Benz SL-Class (R230) (2003) Opel Astra Convertible (2006) Peugeot 307 CC (2003) Porsche 911 Convertible Porsche Boxster References External links Official website Convertible top suppliers