What was the motorsport circuit where the 1991 Brazilian Grand Prix was held renamed to?
1991 Brazilian Grand Prix The 1991 Brazilian Grand Prix was a Formula One motor race held at Interlagos on 24 March 1991. The race, contested over 71 laps, was the second race of the 1991 Formula One season and was won from pole position by local driver Ayrton Senna, driving a McLaren-Honda. It was the first time Senna had won his home Grand Prix, in his eighth season of F1. Riccardo Patrese finished second in a Williams-Renault, with Senna's team-mate Gerhard Berger third.
1991 Heinz Southern 500 The 1991 Heinz Southern 500, the 42nd running of the event, was a NASCAR Winston Cup Series race held on September 1, 1991 at Darlington Raceway in Darlington, South Carolina. Contested over 367 laps on the 1.366 mile (2.198 km) speedway, it was the 21st race of the 1991 NASCAR Winston Cup Series season. Harry Gant of Leo Jackson Motorsports won the race.