OK, here's a question I feel stupid asking, but I'm not an aerodynamics guy, nor a performance car guy...

Why does my '95 E320 ride smoother at 80MPH than at 35MPH? Is it just an illusion? I haven't had the car for long, so I still don't take it for granted. I always have the feeling that 80MPH somehow "feels" slower than 35-40MPH? At lower speeds, it feels like a nice car; at higher speeds, it seems to stretch about a foot longer, six inches wider, and ride like a big cruiser.

Anybody got opinions about why I get this perception?

I enjoy driving this car at normal speeds on city streets, but when I get on the interstate, in the middle of the desert, and start cruising, my grin gets wider and wider and...

See - I told you it was a cheesy question.