Years ago Monogram issued a couple of cars-in-a-bottle kits. I think there was a 7-Up bottle and maybe a Dr. Pepper bottle with a dragster inside.

Can't help with a kit, but have a few photos. The box pic was posted by someone here on HobbyTalk. This one is Pepsi but I think there were other soda bottles. The other "bad pic" is my old kit from 1973, I was 13 years old at the time I took the photo.(and it shows) Neat concept, the bottom popped off and you slid the car in.
http://photos.hobbytalk.com/data/500/7215pepsi2.jpg
http://photos.hobbytalk.com/data/500/7215bottle.jpg

Good Afternoon!
I may have the Dr. Pepper car at home still, in the box but not sealed. Complete kit. Drop me a line and i'll check the status on this kit tonight.