Yes there is space in the boot in the E90I It is the same as the E60 - if you have RFT's the tyre well is used as extra storage space under the boot floor cover.
I still await my call from BMW CC - just chased them again - not that I expect any answer just feel like harassing them as I am pissed off!
I think I am going to go non run flats.
My wifes car - E46 320 ci sport got a nail in the rear tyre yesterday (non RFTs) - I took it off put on the skinny space saver and took the tryre to get fixed. The cost £10.00 to repair and if it happended to a RFT - you can not repair them!
Just thinking I am going to check tonight if the E46 jack will work on my E90 and also if the E46 skinny spare will fit in my tryre well...keep you posted on that one!
E91 335i M Sport