In an emergency...
 

I have a 2012 997.2 Turbo S with the OEM center lock (CL) wheels (19.0x9.0 front wheels and 19.0x12.0 rear wheels with OEM tires). The car has PCCBs. Question: IN AN EMERGENCY-only situation (say stranded in the middle of the Mojave desert) I have a flat in a rear tire with damage to the sidewall, and therefore not able to use the sealant/compressor or a tire plug kit to fix it), can I mount a front 19x9 CL wheel on the REAR of the car? Would there be any question with regards to clearance for the PCCBs if I mounted that front wheel/tire on a rear position? I am considering purchasing an OEM 19x9 CL wheel/tire to take with me as a spare tire. Yes, I know that one could have the car flat-bedded to the nearest repair facility; and, yes, I am familiar with the process of removing and reinstalling a CL wheel having done a rear tire just last week - I have all of the tools and grease necessary already. I am just asking if it is physically possible to mount an OEM CL front wheel/tire on a rear position and be able to drive the car to the nearest repair facility. Is the rolling diameter of the OEM front wheel/tire significantly different from the rears? I understand that these tires are unidirectional (i.e, designed for a specific side of a car) - are there any issues with the fact that I might have a spare on the "wrong side? Is there a problem with the fact that these are CL wheels in terms of any stresses that might be induced due to mounting a front OEM wheel/tire to the rear position (assuming that I am limping into the nearest repair facility, say not exceeding 55 mph)?

Wrong forum... Try the 911 forum: Porsche 911 Technical Forum - Pelican Parts Technical BBS

Limp home mode, it should be fine.

My friends 7 series BMW doesn't like it as the computer thinks it's going around a corner and won't shift gear LOL.

I'm gonna say "no".

Take off a front wheel and put it on the rear. That'll answer whether or not it will clear the brakes.