The MotoKey site provides measurements of the key to the nearest one-thousandth of an inch. I miked my keys before ordering and they were to spec.
Tried them in the ignition switches yesterday and they fit 'all the way'. So far, so good.
Nice thing about the vendor; their policy is if it doesn't meet your needs, full refund. Doesn't include the key cutting charge but my buddy at Ace Hardware and BMW Emporium will get 'er done, I'm sure.
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