I've just ordered a new Hyundai i10 Premium which comes with 14-inch alloy wheels that look very small. I wanted to specify Hyundai's 15-inch alloys that appear in most brochure pictures for the car - but they are only available as an optional accessory (not a factory fitted option).

However, I've been told they cost £1000 without tyres or fitting. So I'm thinking of buying some 15-inch alloys from an alloy wheel dealer rather than Hyundai, as a full set of alloys plus tyres is going to cost less than £500. Are there any dangers with doing this?