Tom Walkinshaw Racing developed six XJ220-S road cars, featuring one-piece carbon fibre composite front and rear bodywork. The XJ220-S models did away with the hidden headlamps of the original and instead opted for perspex covered lights. The S models were essentially road-going versions of the XJ220-C racer, and as a result featured a much simpler race-orientated interior with kevlar seats and the removal of the leather trim. Colin Goodwin, a writer for Autocar, tested an XJ220-S in June 1995 at Millbrook Proving Ground and set the lap record at an average speed of 180.4 mph (290.3 km/h).
Source: Wikipedia (original)