Earlier that year, Jeff joined Mario and Michael to race for Jochen Dauer Racing in the SunBank 24 at Daytona.Although their Porsche 962C was classified in fifth place, they failed to finish due to overheating [REF].
It was February 1993, when Andretti set the (then) unofficial closed-course speed record for IndyCars of 234.50 mph, the fastest speed ever recorded at Texas World Speedway, while testing for the Indianapolis 500.