OK, so I've never had to buy a spare wheel before, all my previous cars had a full size or space saver so never researched it before. I'm not comfortable with the repair kit they gave and I'd much rather get a spare wheel for peace of mind. I've read a few threads here but unfortunately I'm quite confused about what I should be looking for. The sticker on my door pillar says '225/50R17 98V' but I'm not sure how to relate that to the wheel I need to buy. My car has standard 17" alloys. My car has standard 17" alloy wheels. My car has standard 17" alloy wheels. Can someone give some guidance on what I need to do next?