1981 Indy 500 Buick Souvenirs Sunday, May 24, 1981. 65th Indianapolis 500. 1981 Buick Regal Pace Car. Lots of different types of souvenirs could be had at the Indy gift shop. Here’s a sample of some. . entry ticket tape measure pocket knife letter opener special VIP parking pass bronze pit pass (badge) photo at the track .