That's actually a really good point. I'm pretty sure you're right that the Steve Millen IMSA cars (the red/white/blue ones with the V8) were 2+2. I guess I always just associated shorter wheelbase with better handling.
That said, anything else I'm missing? From a bit more research I guess the no HICAS is a plus, better rear gear, and aesthetics are subjective... Nothing else glaring I'm missing?