Try that link again mate, click that and then scroll down, you'll see the option to download it there. I've just tried it and it seemed to work fine. (Download button with blue background)
I've been offered the race car which I'm getting Friday but I am definately interested in your Road Car version. I am not overly fussed on the cars mileage though so I wont offer over the odds just because of that (so you know when picking out a car)