Not really interesting for digital. Crazy fast is not at all helpful without a crazy BIG track where an R4 is considered a hairpin turn. You don't get that much in digital. Even the oXigen Le Mans race wouldn't be suitable because, although the track is the size of a gymnasium, the turns are still normal track radii. If you're just going to slow them down to make them manageable, what's the point of having them in the first place?