Short answer . . . NO. There's much more potential for harm to the engine AND the driver (think about CO poisoning). However, I have to ask if this is a serious question. Here's my reason. It seems to be a rather odd question to be coming from a person who belongs to a car club, and owns a 147 mph, street driven Camaro.

Seriously, who's gong to drive a car around on the street with nothing hooked up to the exhaust manifolds?