I just bought a 93 van. Its my first Van and first GM product. It has 198K and still runs good. Smokes a little on start up but that's expected for its age and mileage. A/C had some minor issues with leaks that I fixed. 4.3L surprisingly has enough power. Gas mileage has been fairly good also considering its age and size of the vehicle. Very fun to drive. We are planning several road trips now and will be using this van to site see the states.
I like the separate Rear A/C controls. The OBD-1 computer system is very simple no tools needed to look up Check engine codes. Overall a great truck with no complaints.
It would of been nice to have the middle seats slide back, it makes it difficult to load things from the side if you don't want to remove the seats. Rear A/C control should of been in the rear of the Van not by the drivers controls. Power mirrors would be nice for the passenger side.
Bought used April 2004 with 94,500 miles. Van now (July 2006) 125,000 miles on it. It's a G20 Shorty (180in long) with a 4.3L engine. The front end is excellent, compared to Ford van. Gas mileage ranges from 17 (city) to 20 (highway) at 65mph. Engine has been very reliable. A/C is a constant problem. The A/C compressor has been replaced twice in the last two years, and is broken again now. The factory jack is very clumsy to use.
The front suspension and steering is head and shoulder above that of the Ford econoline. Overall a reliable workhorse. Cruise control is simple, functional, and free of gimmicks (idiot lights).
The van's width is 79". Make it 5 inches wider to provide both driver and passenger real lateral foot room.