I Need Your Opinion

i want to buy a gti a 1990. wat are the good things and bad things about it.

also usually they have high km if i was to do a swap what engine fits in a gti and how many horses would it give me. haha sorry for the pros in the site but i am kind of new with gti's

thanks for the help

if it volkswagon it doesnt matter the miles mines done rolled over and stills runs fine engine swaps i dont know though