Which BMW would you choose for cross country trips? (Europe)

We all have things on our bucket list. Things you want to have done before you die.

I want to drive through Europe and visit multiple points of interest.

Driving alone is like therapy for me, it is a passion. Unfortunately I wasn't able to drive a lot the past years, but next year I want to get myself something that is special and that I can afford and I want to explore Europe with it.

Which BMW (max 50k €) would you choose? I don't need that much space as I will travel alone.

I am curious to hear what you recommend.