The '93 is the second year the car was made (first year imported to the States) and has a few differences from later years. The wheels have four bolts instead of five and the timing belt change interval is 50K versus 70K on the later models as it is slightly narrower. Bumpers and headlights are also a little different. The exhaust note of the '93 will be similar to the S70 if it still has the original exhaust system. Potential trouble spots are the same as the later 850s. Check the ATF (if so equipped) to see how clean the fluid is. Check the air conditioning to see how cold it is. Good luck.