I say go with more motor. I thought going from 500 hp to 620 was going to be intimidating but its just more fun. Only i still dont know what traction is like on 200 tread wear tires.
Benz silver would be cool with black wheels. I've been on this black wheel kick lately.
I can see where your headed with this thing and have a feeling it will be seeing alot of events. Go gettem Scott!!