Nothing so far. I had two allantes before one brand new sold, I just bought car with 78000 solid very strong engine, NO known problems. Windshield washer fluid contained leak. Soft top latching mech. bit difficulat to work with. Some condensation on passg side headlamp. SDD (selective damping) sys problems, other than that it's a head turner no matter where you go! planty of room and NO other car like it on the planet earth!.
EXCELLENT investment. Don't buy and sell it,, keep the car!! in 30 years it will be worth while. get pearl white hardtop the best in value. Very quick response planty of power even without northstar. 1991-1992 are the best years. original side mirror, recaro seats, whereas 93 has a larger functional, but generic looking mirrors, and GM seats. GET the 1991 or 1992 the best ever!!
I have a cadillac allante 1991,and I am really satisfaction.
Only 48,000 M. it like new. but for me,it is new. it's my second allante,before it was 1988,and I make 210,000m and no problem whit this car,i am very happy about my car, Here the winter time it's very cool, and snow, So for that I release my car for 6 months, after I am happy to use it.. I from Trois-Riviere, P.Quebec Canada.