NEVER ASK HIM TO GIVE UP SOMETHING HE/ SHE IS PASSIONATE ABOUT
Remember to encourage him/her to do the things they are passionate about, whether professional or personal. Do not ask them to give up just because you do not like it, especially when it comes to cars and men. Cars are like their baby, where they would spend a lot of time with. But as a partner you should not discourage their passion. Instead support them and show some interest in their dreams and passion.