I did not even think they made pitstop cars last year? I did not see any.
My understanding was the pitstop car was the same as last year's 1:64 rcca club car (that is no longer being made), and the select/champion version was the new rcca elite which is also no longer being made in 1:64.
The Pit Stops are basically WC cars in a box. Neither the trunk nor the hood open on those and they are very cheaply made. The Driver's Select are the old HO version which are basically 1/64 club cars being distributed via retail.