ok 88 Cutlass GT were a regional option (NC/SC area) ... all 400 were console shifts. they really arent worth much more than a typical cutlass salon in good shape and worth less than the hurst and 442.. they had stick on hood scoops and hurst style spoilers. they were two toned with silver on the bottom and several options up top.. they also had stripes and a numbered console plaque. i beleive the gear ratio was 3.08 in the 7.5 rear.. they recieved the regular 140 hp 307..
i would estimate a good shape one is worth 3500-6000. a mint one would be 5000-9000. i personally would love to have one. The 88's have always had a special place in my heart (hence the screen name) but i couldnt see paying over 5000 for one. colors i've seen in person are dark teal blue metallic (code 31), black, burgandy, charcoal, silver. Also all cars had chrome bumper despite the lower paint being silver, they dint paint the bumpers like the hurst and 442.. i got a bunch of pics if u need to see any