Welcome to the forum Barks. To give you the best answer I can about the spoiler, its main purpose it's there, is to help prevent lift. Like the Audi TT's the Crossfire gets very light above the century mark. At 130 you really wouldn't want to be changing positions of the spoiler simply for safety reasons.
The spoiler can be disabled just by pulling a fuse, then you can install a "kill" switch to keep it down all the time. But when you hit 90 mph an alarm goes off telling you that your spoiler isn't working and you need to back off. That's when you manually flip the switch and raise the spoiler. As long as you can keep it under 65mph, you can wave your spoiler as much as you want.