[Daremo]

Will this car take 18x8 wheels or is 19x8 the min size?

[chowser51]

I have 18s as my snow setup on my '19 m35i.

go to tire tack and put your car in and see if they've fitted 18s to your year.

[rice_rocket88]

Yep I would say unless the offset of the wheels is terribly off or your spoke pattern is awkward, it should fit.

[Daremo]

So i found a set of 18 x 7.5 X X1 wheels on FB, but they rub on the front calipers. Is a spacer an option or am I just better off with either a 19 or an 18 x 8?

[rice_rocket88]

That sounds odd if it's a stock x1 wheel it should have cleared the caliper. (I've test fit my own 2016 x1 wheel on my m35i and it's tight but it fits. If it's rubbing on the face of the calipers then yes a spacer is an option you can get relatively cheap. I myself run spacers on the stock wheels just for a wider stance.

[Daremo]

Wife just took it for a trip down to PA,, when she gets back I'll test for it again myself and then get a spacer if that's all it will need.