I've gone over the cars last night for a bit, went straight with the Black Falcon SLS. Dunno, but I'm a bit disappointed with it. I guess I would have to work on the tuning setup some more, but from the first impression, it feels like a boat. Understeers like hell, seems heavy and generally unpleasing to drive. Ugh. I would've hoped for a better drive, really. As it stands, it seems way inferior to the BMW Z4. And that's in terms of looks, sounds and handling.
Also tried out the 300 SEL 6.3. Love it for it looks, kinda, but that's one of the cases where the lack of fender flares in FM4 is really bugging me. Replicating the rally cars of yesteryear is impossible this way... Aside from that, the minimum weight is like 1.4 tons, not exactly the kind of car I'd be interested in normally, so from a pure driving point of view, not really my cup of tea, either.
I have yet to try the M5 and I guess I'll give the RX-7 a shot, too. Kinda suprising, but I've been looking forward to this pack quite a bit but after getting it, I can't say that I've spend a signigicant amount of time with any of the cars, yet... Oh well.