The most popular Japanese car racing vehicles are made by Toyota, Mitsubishi, Nissan, Mazda, and Subaru. Sports car racing in Japan has seen its popularity wax and wane since the 1960s, when Can-Am was popular. Nissan and Toyota had frequent entries in the IMSA races, and the European Le Mans. Some of the more noteworthy cars are the Toyota GT-One and the Nissan R390. The Toyota was a GT class car that sported a twin-turbo charged 3.6-liter V8 engine. The Nissan was also a GT class vehicle that featured a DOHC, twin-turbocharged, 32-valve V8 engine. Moreover, the La Mans was won in 1991 by an entry manufactured by Mazda.