Originally Posted by HighlandPete
If you read the BMW press releases at the time, definitely to save ... costs, weight, emissions, (that is the big one), more flexibility in using the rear well.
Sold to the customer on safety, but other reasons were driving the move to RFTs.
Also remember the tyres were supposed to be about 10% more expensive, at most. There was no discernable difference in driving characteristics, we were sold that as well.
I like full size spare tyres. If the car has alloy wheels, I like full size alloy spare tyres which are the same as the other 4.
Since most manufactures no longer have full size spares, I prefer RFTs over space savers and cans of goo.