I have driven a 3.0 Roadster and love it. My +8 is ok, but does not ride nor handle as well as a 3.0. I don't think the 3.7 is going to hurt anything, but I see no advantage other in the U.S. it is available. And a big item is it can be serviced by a Ford Dealership (A Big +). The balance of the +6 Roadster is its selling point IMO. The reality is that with our speed laws a 4/4 with a small engine is very adequate and fun. But I must admit I addicted to the low RPN grunt of My +8 Bitsa. (not a factory built +8).
