Nothing, the car is a dream!
If you are even slightly considering one of these cars stop reading right now. Go out and buy one.
These machines are awesome. Where to start? 300HP? This has to be under-rated by GM. For a 2 ton car, it takes off like a muscle car from the 60's.
The seats are beautiful, and super comfy for long trips.
The Bose stereo is incredible.
At speed, I've had mine over 95MPH, it is solid, stable and attached to the road. You really feel safe in this car.
Not to mention that the car itself is drop dead gorgeous!
The technology in this car is so well integrated that you forget its there. Take the automatic wipers. No extra buttons, just a regular old wiper stalk. Except when the rain starts so do the wipers… Amazing!
One word of warning, some (maybe even most) of these cars will vibrate near 70MPH There are a number of causes, most problems are linked to low quality Goodyear tires. Plan your test drive to include a deserted bit of flat smooth freeway and open her up. If she does not vibrate between 65 and 75 you have found your car.
I test drove four, two vibrated two did not. Interestingly enough the higher mileage cars were smooth! This might be one of the rare cases that a high mileage used car might not be so bad. High mileage cars will be on their second set of tires and almost no-one replaces the OE Tires with another set of Goodyear's.
Mine is a 1997, bought from a Wholesale dealer. Checked with Carfax after I bought it, had been a leased car twice. Love this car! No vibration at any speed. Have had some oil usage. Actually, this is my fourth Cad and I think my favorite, although the 1979 Deville Deluxe is pretty close. Will try to keep it "up to par" so I can have it forever!