1999 audi a4 and a 2000 audi a4 parte car

The first car runs and drives has 180k on it 1 tire has a slow leak and the battery doesn't hold a charge if sitting for more than a couple weeks, my brother in law owned it for like 12 years. Seat is torn and the radio just quit. 1.8 turbo, car rubs and drives and has new brakes. He just upgraded to a 2015 f150

Second car is a parts car, ran when parked but been sitting a few years, it was my wife's car. 2.8 motor this car is 500 on its own or 2200 with the other car

Both are autos and awd