Adam 'The detective' Štefánik
It was brake failure, not speed issue. Rear brakes were glowing red, while front not (it should be opposite). But Bernd Maylander saved it slightly-he throw car into slide and that slowed him down quite lot so impact was not so hard
Once I read that it was Maylander driving I figured it had to be a failure of some type. Speaking from experience, brake failures at triple digit speeds are not a fun experience.