Searched but will these fit?

Have them on my 5. Perfect fit, with or without spacers. I've run 215/50 and 225/50 tires on them. The +55 offset works fine. If you're going to use spacers, make sure you have enough thread engagement- Discount Tire doesn't like spacers. 1/8" will reduce you by about 2 full turns of thread.

mz5_mx5_wheels_crop.jpg
 
Welcome, I thought so too. ;) Considerably lighter too, plus wider to support 225/50 which really do a good job filling up the wheel wells and giving some extra sidewall for a nicer ride. The pic has 215/50 in it which brings the speedometer up to perfectly match reality.
 
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