The company was formed in 1972 as Sigma Automotive Co., Ltd by Shin Kato to develop and produce motorsport related parts and accessories as well as operating their own racing team.

[5] Sigma Automotive began its racing career in the Fuji Grand Champion Series and in 1973 participated for the first time in the 24 Hours of Le Mans with their Sigma MC73, powered by a Mazda Wankel engine, becoming the first Japanese car to qualify for Le Mans,[3] before retiring early in the race with electrical problems.

With the demise of Group C in 1993, SARD switched to the newly formed JGTC series and also return to Le Mans with a V8 powered MR2 known as the MC8-R, having the same spell of misfortune as they had during the 1970s, competing in 1995 and 1996, only to fail to pre-qualify in the face of the newer generations of GT1 cars in the following year.

SARD also entered a Toyota Supra in first two years of the MC8-R program where it faced against fellow Japanese GT machines in form of Nissan Skyline GT-R and Honda NSX, the latter which also raced in and won the GT2 class in 1995.

[8][9][10] In 2006, SARD competed in the 24 Hours of Tokachi, a Super Taikyu race, with a hybrid powered Lexus GS450h[2] finishing 4th in class and 17th overall.