On BBC2 (UK) on Tuesday 22nd August at 20:50 there is a program being shown which looks back at the life of a car. In this programme, they look at a Mercedes 250 SL which was bought by Jay Kay. Presumably they'll be an interview with Jay but I'm only guessing.
Around this time in May 2000, bidding on the Mini website for a Jamiroquai customised Mini car finished with the winner driving away in a bit of mini-jamiro-history for just over 14,000 pounds (UK).