if those are the only options to choose from, i personally would get another integra with low miles.

the B5 A4 (the one youre referring about) is now 2 body styles old... and more than likely will have really high mileage. its not cheap to fix and upkeep the maintainance on these cars, especially if youre not the first owner and happen to get one that has intermittent problems.

i would pick the integra, cuz then if something ever happens, ill just fix it myself at home.