It looks like the Cadillac XLR may go the way of the Allante. According to LeftLaneNews, Cadillac is likely to kill the XLR by the time the new Corvette arrives in 2012 (the two cars share the Bowling Green, KY plant). Although there has been no official announcement, the Cadillac has only managed to sell 1750 copies of the XLR last year (well under the 6,000 annual goal.)
Hmmmm, a V8 coupe/convertible sports car with very low production numbers. That sounds like a future classic.