The spinners are the three-pronged center pieces in the middle of the wheels. I like those wheels a lot.
From Ford:
Two different Sprint Mustangs were offered in 1968. They were package A and package B. Ford advertised the Sprints with an advertising campaign of "see the light sale." The vehicle offered the GT style without the higher price. The Sprint Mustangs were available with two barrel V8s and six cylinder engines. The two Sprint packages were different, however, and Package A included the following: C-shaped stripes, six or eight cylinder engine, full wheel covers, lip moldings on wheels, and a pop-open gas tank. The Sprint Package B included the same C shaped stripes, but only an eight cylinder engine. It also boasted the wheel lip moldings and pop open gas tank but the full wheel covers were replaced with painted Styled Wheels, the sidewall tires were new, as well as the grille mounted fog lamps. The production numbers for package A were 25,012 and for package B 15,106.
Decoding the VIN will tell you if yours is in fact a Sprint Edition.
__________________ 66 Coupe Tahoe Turq - 200, Pertronix & Flamethrower, 3 Row Rad, Cliff. 6/2
96 GT Vert Laser Red - FMS pulleys, Bullet ProM, BBK CAI, Prof. Prod. Elbow and 70mm TB, MAC Off-Road H, Borla side exhaust, Tokicos, B&M Ripper, 18x10 & 18x9 DD Bulletts
06 GT Tungsten, UIP, Red Leather, Stick, 18" blades, Steeda CAI, SCT XCal 2 w/ MC Racing 91 tune, MACs, BMR SP010 springs, BMR Adj Panhard, CDC ducktail & quarter louvers, Rear louver, painted black stripes | 
