Well, it's official for me. I drove Mike's (94m5) car yesterday, and the coils make that car nimble. About as nimble as the air ride with all the suspension work on my 98. But I'm still going to be an air ride supoprter, as the coils just don't compare to it on the highway. So, it's a matter of what you want. Cornering, (Get a friggin Vette then), go with coils. A nice ride? Go with air. Cornering and a nice ride? Spend 1200 on your suspension, and get the best of both.