The Viper became the Official Pace Car of 1991 after the UAW caused a furor over an import pace car. Viper was pressed into service very late in the process. Herb Helbig recently wrote a great overview for Viper Mag I believe.......So the Stealth was called the OFFICIAL CAR of the 1991 IMS. It was used for parades, officials, VIPS, and the Indy princesses. I believe 25 or 50 were made, all the same color.
In 1996, Viper GTS was the OPC, Stratus was the OC, and Ram-1500 was the OT. All the IMS Strati were RED and all 80 of the IMS Rams were GTS Blu/White. (I had # 3... #1 is here with 2400 miles, at Timberline Automotive.) ~2500 replicas of the Indy Ram were built
Im a Pace Car guy.... when the Stealth was officially announced as the Indy Official Pace Car for 1991, I ordered one. [Mine was featured in MoPar Perf News, Sept 1991.] When OPC was cancelled I switched my thought process to Viper: Simply BECAUSE of that pace car debut!