Jeff Gordon drove the BMW Williams FW24 (or 25 can't remember) at Indy last year in an even with Montoya called trading paint. His best lap would have got him a top 10 start. Some of the Nextel cup drivers are regulars in other series like Kyle Betty, Tony Stewart, Robby Gordon, Dale Jr, etc. Stewart and Dale Jr teamed up with Andy Wallace in the Citgo #2 Daytona prototype in the Daytona 24 and were leading with 15 minutes to go until the rocker box broke. Stewart tried valiantly to drive it on 3 wheels but tagged the wall in the end when the whole rear suspension came apart.