The SPF Grand Sport is just going into production. The first car is being used by GM for the "E-Rod/GMPP" tour events. Some GS's have been sold and are in build at the factory. Sadly, no one other than the guys at GM have had the chance to "drop the hammer" on the
Grand Sport.
I am a lifelong Ford guy, but if I went to the Dark Side, the Grand Sport would be the ride......