cobalt

I know this has been asked before, however my wife has two Cabs she is interested in and was hoping for some quick answers. Both cars have other parties interested. We may need to move fast to get one.

To begin with anything specific to cabs that I should know? I believe the cabs only have lap belts in the rear. Other than the obvious reasons does anyone find it unsafe to place their child in the back seat with the top down? Can a shoulder belt be fitted?

My wife is currently looking at a 91 C4 with 45k miles on the odometer. The car is apparently clean with all the records up to 35k miles. I am trying to get more info. Any Ideas on what the car is worth if it is clean with no apparent problems. The other car is a 92 C2 with 55k miles and has all the records. They are asking about the same price for both.

What specifically do you guys recommend for options and what should i be looking for as problem areas.

Any input would be greatly appreciated as always.

Thanks