manufacturers were reluctant to provide the pace car for the 1972 Indy race. Hurst Performance stepped up and volunteered to sponsor the 1972 Pace car. Oldsmobile provided the Cutlass Supreme coupe and convertible. It was the only time an Indy Pace car was sponsored by a manufacturer other than an automobile manufacturer, and first time to include a major supplier's name in the title. The 1972 edition of the Hurst/Olds had some of the lowest production numbers of any produced with a total of 629 made; 130 Convertibles, 220 hardtop with sunroof, 6 Station Wagons for Press and Ambulance use, and 279 hardtop cars. The only color available was Cameo White with reflective 3M gold stripes that were stickers, not paint. All of the cars had the W-25 Ram Air Hood and gold SS III Rally Wheels with a chrome bolt-on center cap and chrome beauty ring. The tires were Goodyear Polysteel Radials. The standard Hurst/Olds engine was the L75 455 cubic-inch Rocket V8 rated at 250 net horsepower (U in VIN). Optional at extra cost was the W-30 option with the L77 455, a blueprinted engine rated at 300 net horsepower (X in VIN). Both engines were mated to a Turbo Hydra-matic 400 transmission with console-mounted Hurst Dual-Gate shifter. All of the 1972 Hurst/Olds had the black Strato bucket interior with a center console. Special Hurst/Olds Pace Car badging adorned the glove box door and all 1972 Hurst/Olds' were identified with a W-45 Code on the cowl tag. 1973 The new Hurst Olds shared with all 1973 GM A body cars, the most extensive redesign in their 10-year history The chassis was as new as the bodies -Wheelbase dimensions were a sporty 112 inches for coupes and 116 inches for sedans and station wagons on an all-new sturdier perimeter frame with increased front and rear suspension travel, larger 8½ inch rear axle, wider 6-inch wheel rim width, refined rear control arm bushings and new shock absorber location, new body mounts and improved front suspension geometry - The left wheel was adjusted to have slightly more positive camber than the right which resulted in a more uniform and stable steering feel on high-crown road surfaces while maintaining excellent freeway cruise stability. Clearances for spring travel were improved for a smoother ride over all types of surfaces; the coil springs at each wheel were computer-selected to match the individual car's weight.