They stopped using the Buick's as state police cars around 1992 - 1993. Most of them had reached there 100,000 miles & were put up for auction in Wethersfield CT. CT used Grand Nationals & T's & ALL were equipped with 145 mph certified speedo's, Chip with mph cutoff removed & 225/60/15 VR Goodyear Eagle Gatorback tires. I was lucky enough to score 4 cars from the state. 2 87 Grand Nationals, 1 with 105,000 miles the second was a cream puff with 57,000 miles, 1 Burgundy 87 T with 100,000 miles, radio delete car with chrome antenna plug, Very Fast car that i sold to Kirban in 1993 & a 87 Rosewood T that i purchased in 1999 that had been used as an undercover car since it went out of service as a trooper car. That car was sold & went to PA. My Limited was equipped with the Correct Police speedo, chip & VR tires in 1989 & still rides on those tires today.