1993 SL 2 PLEASE Help Me with my son's car

We are considering buying a Saturn SL 2. It has a new battery, alternator, the starter and fuel pump are not the problem. We changed the coil pack and the car still wont FIRE UP. We also changed the spark plugs. There was also oil in the old spark plugs. It had been sitting for a year without being turned on. Any help would be greatly appreciated.