"Fifteen M3s were ordered by BMW Australia in 1994 to race in the Australian Super Production series. All were delivered to Tony Longhurst Racing for final preparation by the Frank Gardner run team. Eleven were made available to the general public, (who have to possess a CAMS license to be allowed to buy one), four were retained for the race series, the M3-R had locally sourced King springs fitted to Group N adjustable struts and rear perches, AP Racing twin plate clutch and four piston brake calipers, dual pickup sump, an oil restrictor in the head, A C Schnitzer cams, a 3.25:1 ratio medium case diff and M5 driveshaft, cold air snorkel into air filter box replacing left hand fog light, non functional rear seat, air conditioner delete and more aggressive tune, GT front splitter and rear spoiler with extensions and gurney strips. This was the most powerful production E36 made with 240 kW (326 PS; 322 hp). A bolt-in FIA approved roll cage was also a factory option (locally produced by Dencar) there were several differences between the cars depending on customer requirements, early numbers had non-staggered BBS wheels, later had staggered BBS wheels (individually numbered plaque fitted to centre console below emergency brake lever)" https://en.wikipedia.org/wiki/BMW_M3#M3-R
