They've been using those ugly 4 door Porsche cars forever. It's not like they can go fast between gates. You'll be going the same speed as the baggage carts, tugs and busses in a fancy Porsche.
It’s the same as groping a hot stewardess as you exit the plane. Cheap thrill that won’t last and won’t really get you off. All it will do is cost money and give you a story to tell that will most likely have people shake their heads and judge you.