recently i stumbled on a YT presentation by Gale Banks. You know, from bankspower.com He mentioned that he once was commisioned by Volvo to develop the worlds first turbocharged car that used an oxygen sensor. He never mentioned the type of car but it has to be the B21ET/B23ET, right? I'm curious if he was also involved in the WTCC Volvo racing effort during the 1980's. Anybody know?