Just a little update today.
Happily, BMW got onboard with the Black Friday sales. They had the M Performance shifter and shift boot for sale with 30% off. Even then, throwing almost £100 at something you don't use a great deal was a bit of a pointless spend, but those prices were the cheapest I'd ever seen. As such, the car's had an early Christmas treat. Goes well with the matching handbrake I reckon.
A couple of pics: