Mazda 727C was a prototype racing car built for Mazdaspeed for the 24 Hours of Le Mans in the Group C2 class. It replaced the 717C in 1984 as an evolution of the Mooncraft-built design, and used the same 2-rotor 13B Wankel engine as the previous model.
Two 727Cs were entered in the 1984 24 Hours of Le Mans, finishing 4th and 6th in the C2 class. However, a pair of Lola T616s using the same Mazda engine were successful in beating both 727Cs, claiming 1st and 3rd.
The 727C was used a few more times in the 1984 World Sportscar Championship season, managing a mere 10th place in the C2 manufacturer's championship, behind two separate teams of privateers. The 727C was then replaced by the 737C in 1985.