Quote Originally Posted by Mrsideways View Post
Greg, Yes the Box extends down from the floor in the rear into the spare tire area. The Coopers Do not have it. It's pretty well the ONLY difference in the actual body between a cooper and a Cooper S.
Then I suggest it's compliant to remove it. Remember, there's no VIN rule, and no requirement to start with any specific body when you install an engine. So if it's not there on the non-S, then you can legitimately remove it in the S, and just claim you started with a non-S...

Could someone run a Cooper S GP. It's a limited addition that is an S JCW with some nice aero body work (including a full underbelly pan factory). And therefore if the GP is legal for the class could a regular S then receive all the GP body work since it's really just bolt on parts.
Compliant, IMO. Any car delivered in the US can be used, and you can install any compliant engine. And, you can install the GP goodies on a regular car and call it a GP.

GA