I second Crescent street. Lots of activities and few nice cars like Veyron's and stuff like that.
Although, I would keep my car far from downtown during the F1 weekend.
Scotti has a nice showroom, but nothing mind bending that you couldn't see at any other Lambo / Lotus dealership.
If you're into Ferrari and want to see a big bunch of Ferrari's at the same spot, all the QC Ferrari groups are having a dinner saturday night at Dix30. I'll probably go take a few pictures.
And if you're here today, Lotus's F1 driver Romain G. will be at Scotti at 6pm.