the motors aren't really trash, they just need more care than piston motors. i've seen a few that turn over 300k without a rebuild. the only thing about them is they have SHITTY gas mileage and bad emissions. also, you hafta let it cool down almost like a turbo car. if you don't, they're very difficult to start if they're still hot. i don't know much more in depth than that, but i hope i answered your basic questions.