The car was assembled from the T24004 kit parts, and including body mounting with the Automatic Body Mounting Tool (part #T2407) in about 15 minutes while showing the raceway manager how to do it.
In this configuration, the car has a 4.5" wheelbase, and runs great with a single magnet on our Carrera track. One can use many injected or resin bodies.
For the purist, the steel pan could be trimmed about 1/16". For the expert, the body can be mounted on the outside of the pan instead of on top. We encourage the top mounting only because it makes it so easy for beginners, and beginners are for whom this car was created in the first place.
Since the body is recessed where the pins should go up front, I used the hypodermic tubing straight through the body with clear plastic washers cut from the car's clamshell packaging to stop the tubing from sliding out.
The wing is re-attached using the stock body-mounting bolts, with two short pieces of 3/16" aluminum tubing as spacers between the wing and body. A wide washer retains the wing, which floats, so as to be crash protected. The total weight is a rather hefty 5.6oz, the body being 2.5oz of this total... What a brick! Note that the little bracket behind the chassis can be used to bolt engine/gearbox/suspension detailing to the car for more Concours points. An extra TSRF guide bolt/nut combo can be used for this purpose.
One would need his reading glasses to locate body-mounting pins... Note that the stock wheel inserts from the Carrera chassis fit right into the TSRF wheels...