Ok Gas or Diesel.
Gasoline powered are generally less expensive both up front and to repair (engine/drive train repairs) however Most gassers are front engine and most diesels are pushers,. this has a serious effect on how noisy the ride (The rear engine is not as loud).
Diesels have a reputation for LONG LIFE
And more torque at lower RPM (Can be useful when the light turns green or going up a mountain road)
There are some other differences as well.
I'm trained on gasoline engine repair so most minor work I can do myself. THus I picked a gasser,