IIRC it ended in 1992 and he raced '93 on a race by race basis even turning up late to race weekends to make Ron squirm a little.
Thanks, i'm trying to find out for certain if he was a free-agent at the 1993 Bercy Kart race, his Williams contract (signed on 11/10/93) would have started on 01/01/94 I presume?
He raced in plain white overalls that year I believe. http://www.motorsportretro.com/2012/01/ ... ercy-1993/
He did. So he wasn't under contract at Williams yet, Prost still was since he was still in his Williams get up, but Senna wasn't under contract with McLaren by then either. He was a free agent.