Not necessarily. Often spare wheels or space saver tyres are of a different rim size to the rest of the rims on the car. It's the overall diameter of the wheel which needs to match.that's not right, no way you can use a 15" wheel when the other three are 17". Factory ****-up there. its useless to you so you can either let your dealer have it back (who will then no doubt re-sell it) or keep it & sell it yourself
siriuszero! thank you so much! I just purchased a 2015 F55 base and want to upgrade from the standard 16 inch wheels to 17s or 18s. I figured that I would have to get run flat tires with the bigger wheels because I thought that my car did not come with a spare wheel/tire since the 16s on the car are run flats. Per your instruction, I peaked through the right rear wheel arch with a flash light and saw the tread of the spare! Now I can get the tires I want on the 17s/18s and do not have to stick with run flats.All the Cooper F55/F56 models in the US have a compact spare under the car, regardless of wheel size and/or if you have run flats equipped. (Quick easy way to tell, look directly through your right rear wheel arch, you'll see the tread from the spare)
Cooper S models do not have the spare because the exhaust design is different and does not allow the space needed, though cost saving, I'm sure is another reason.
Problem is that the spanner tool on the restraining plate isn't very good - it needs to turn a bolt that has the weight of the wheel and the undertray pulling on it...
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Cooper S models do not have a spare (no room under the car due to the exhaust design). Non-S models do, even with run-flats equipped.Hmm - I don't understand. I'm in the USA and F56s don't get spares (just runflats). Where does the space saver tire mount for you? Underneath on the outside? If such a mounting is possible I might try something similar with my F56 (S) - because I'd like to switch to non-runflats.