participated in the 1986 Grand Champion Series with an original 2000cc DOHC 4 cylinder 5 valve engine called the "186E", based on the BMW M12. Formula One In the early 1990s, HKS undertook a Formula One engine development program, to hopefully produce a motor in-house for use in F1 race cars. The end result was the HKS 300E in 1992. The 300E was a 3.5-litre V12 (75 degree, five-valves per cylinder) producing 680 ps (671 hp) on pump gas with a 13,500 RPM redline. The engine was comparable to other F1 V12s of the era such as the Honda RA121E and Ferrari Tipo 038. It was tested in a Lola T91/50 F3000 chassis at Fuji Speedway. The program produced valuable engineering, technology, and brand value growth for HKS. However, the 300E was never used in competition and the Formula One engine program was closed after two years. Japanese Touring Car Championship HKS entered in the 1992 Japanese Touring Car Championship Group A, the top Japanese automobile race at the time. The team won the race at Sugo with the specially developed HKS Nissan Skyline GT-R (R32). This R32 Skyline GT-R gained popularity with its iconic HKS "Oil Slick" livery, growth of the HKS brand during the period, and coverage in Option magazine, as well as the general success of the R32 GT-R within homologated Group A motorsports at the time. From 1994 to 1997, the team entered the HKS Vauxhall Cavalier and HKS Opel Vectra in the JTCC. The team won three races in 1994, finishing 4th overall in 1994 and 1995. HKS also won the 12th race in 1997. RRC/BE Drag Racing Series From 1994 to 1996, HKS won each year's RRC and BE drag racing series with the HKS Drag R32 GT-R which produced 840 ps (828 hp). In the 1996 and 1997 BE Drag racing series, HKS entered a RB26DETT powered Nissan 180SX in the Pro Stock class. In these drag racing series and other international drag racing competitions, the HKS team also developed the HKS Drag 70 Supra which set a 7 second 1/4 mile in 1991, the HKS Drag R33 GT-R which produced 1300 ps (1282 hp) and set a record 7.67 second 1/4 mile making it the world's fastest AWD car in 2001, and the HKS Drag 80 Supra which produced 1400 ps (1381 hp) and a sub-7 second 1/4 mile in 2001. Japanese