I saw that movie!!

Seriously, MarKo is right, bottle placement is important, you can put it sideways and turn the pickup tube slightly towards the rear of the car, but you won't get as many passes out of it. I've had two bottles laying on their sides in the spare tire well of a mustang before, good for one, maybe two passes before it would start to fade, so choose your race carefully. If you're just looking to win one race secretly instead of racing all night, look into a 2 1/2 pound bottle, they're alot easier to hide, I had two of them behind the rear seat of a mustang (between the sections of floor that fold up) and they were never found. Seriously though, if you're interested in hiding the kit, why are you posting about it?