I got the 2 car version for my birthday. Amazon and ebay have them. Be sure to check pricing. I saw an Amazon unit for $49, scrolled down and found an identical unit for $37.00. Ebay was at $41.00.
The latest issue of MCM showed up today along with one of those 2 car garage scenes (birthday present) and a box from IPMS with a Ford Escort race car and a bunch of Tru-Color paint. Quite the day for me.