G'day JohnS,
The driver in the McLaren is Gary Paffet. On each day of the weekend they have the Ultimate Speed Comparison. The last few years it was a BMW Sauber in it, but this year they had the 2008 McLaren with Paffet, a Holden V8 Supercar driven by a different person each day (one of which was Jamie Whincup who did drive the McLaren) and a Merc road car driven by Mick Doohan. The road car started first and about 25 seconds later the V8 would go and about 55 seconds after the road car started the F1 car would leave with the idea being they would all cross the finish line at the same time. It was amazing to see the road car on the start/finish straight and the F1 car a couple of corners behind and Paffet just blow by both of the other cars like they weren't even moving, each day they finished within a second or two of each other.
G'day Cos,
This is the fourth time I have been to the Australian GP (07, 08, 09, 10). I have also been to Canada in 07 and Singapore last year.