You having a courtesy car while yours is in for service, not so much.

The extra performance is in my opinion unnecessary for the purposes of it doing its job – being a courtesy car. You’re not being given it with a view to you potentially buying it when you return.

I guess we just have different opinions about what the purpose of a courtesy car is. For me, I’m glad to have something I can get to places with, while my car is in. The X I had recently did all of the things an X does, and enabled me to consider whether I would get one in future, but I didn’t need to experience its performance because I already have a M3P, so I can just look at the 0-60 numbers, etc as a comparison.

It seems like you see courtesy cars as an opportunity to hoon about in someone elses car? (no offence intended).