This is the incredible Toyota 578A Group 7 racer. Toyota developed and built the 578A in late 1969/1970 with the intention of competing in the Can-Am series.
It was powered by a twin-turbocharged 5 litre quad-cam Toyota V8, with alloy block, flat-plane crank, and mechanical fuel injection. It produced 800 horsepower (at a time the best big block Chevy powered Can-Am cars had around 700 horsepower) and weighed around 650 kg. Sadly, it claimed the life of Minoru Kawai in a testing shunt at Suzuka in August 1970, and Toyota opted to shut down its Group 7 program. Subsequently, the 578A never raced.