This is # 1 of 2 trains. They can be put together to run as racer trains. #2 fits very tightly with # 1 to make a racer. Cost to build $18,130 ^ ( same for # 2), 51(L) X 23(W) Blocks. 3trains 9 cars per. Note: If you want to run 1&2 together FLAT LAND Only.