The owner of the car said it was Blitz supra and did Nurburgring in 1998. They had 2 but they couldn't tame the power. They hired Racelogic who helped them add traction control and they did the 7.49 secs to beat the Ruf which did 7.53. It was called challenge 753 because of that.
The 1997 Nürburgring Lap Time Record Supra. This car completed the ring in 7.49 using old technology. The car was driven by Herbert Schürg and was a testament that the Supra was a competitive platform for Road Racing in its time.