I don't know... I'd much rather have a 'Cuda than a Cobra. I did one of the Factory Spec races with a stock Cobra and found it to be almost impossible to control.
BTW, update on me:
1. Couldn't make it last week because a friend was visiting from out of town.
2. I do have Motegi. It's discounted to 240 MS points now so people should get it if they don't have it yet.
3. No idea what happened with cat and mouse last week... I saw someone suggest a really weird sort of "relay race" that I thought would be way too confusing. Did you actually do that? Did it end up being confusing or did it work out? My vote would be for regular old C&M, since it's simpler and can be played with an odd number of people if necessary (by having a freelance cat).
4. To reiterate, I'd vote 'Cuda for this week, but I'll try the Cobra if that's what other people want.