These are videos of Supras, not necessarily 88/89 GroupA or TurboAs.

The old GroupA Supra from Japan. Appears to be a GroupA race in 1989 with the 1987/88 race car.
Features some great in car footage.
http://youtu.be/8j3tOcVur1M

The 1987 Supra #37 of TOMs involved in a rather bizzare accident.
Looks like some kind of brake lock up or mechanical failure.
http://youtu.be/mcImDU2FcEQ