By GMM

Scotland's racecar driver David Coulthard, Formula 1's oldest active competitor, will visit the exciting world of NASCAR racing this weekend.

But his formula one team, Red Bull, pre-empted any rumour-mongering about the North American stopover by insisting that Coulthard's stock car foray will for now be "only for the day!".

"Note to rumour writers," the always humorous Milton Keynes based press office cheekily explained in a press release.

"Please note that David is visiting this event solely to shoot a film for Red Bull and we would appreciate it if you did not start a load of silly rumours about him switching from F1 to NASCAR in 2009. Yee Ha!" Red Bull wrote.

The team revealed that, before he moves on to Montreal for the Canadian grand prix, 37-year-old Coulthard will visit Red Bull's own NASCAR team as it races in Delaware on Sunday.