I guess all the car woohoo animation is more for feeling and atmosphere and the real car just sorta sits there without making "vroom vroom" noises and flying.
Well, I've never noticed that happening in the real world...maybe windows fogging up, but I've never seen the car jump in the air and all.
Of course, I've never seen anyone 'woohoo' in a car before so what do I know...except for that one hot scene in Titanic.
What gets me is how they yawn and "ho-hum" before and after, and the little red negative points over the car during conversation. It takes several moments for them to stop when I give the command to make out or woohoo, then they get very still before the corny giggles and windows fogging up and all. Then it's back to yawn, ho-hum.