I'm gonna learn all about cars dammit. I always thought my step-dad would teach me about cars growing up. He obviously didn't as I destroyed my bat turd (guano - my white POS car) I want to be able to take care of my own shit without hoping some guy will rescue me and be honest about whats wrong with my car. fuck that.
Opposed Piston Engine: Apparently it can have better thermodynamic properties which leads to better fuel efficiency. There are a bunch of different tradeoffs with maintenance and engine size too, but it really depends on the specific applications