[sundvor]

These model numbers are rife, and hardly unique to the brands. If you were to shorten Tesla's Model 3, you'd have the TM3.

And back to Mazda, they have a very successful "3" that _could_ be described as an M3. :)

If anything it's nice that there's some consistency between at least a few brands on the numbering - if you see a 3, you'll know it's likely a medium sized car.