im thinking about getting a 2000 s4 with 150k but it has a rebuilt title... the guy said he'd take $4400 for it but i dont know if thats still too much for a rebuilt. also it needs an abs module but nothing else wrong with it.

 

as long as youre handy with a wrench you should be ok. just be sure you know what youre getting yourself into. these cars have insanely tight engine bays and cost a pretty penny to maintain.