Used Shelby-modified parts, but were not overseen by Carroll Shelby
Base price: $13,005
1991 could be considered a transition year. Chrysler and Shelby had decided to part ways regarding licensing the “Shelby” name for Dodge products in America, so 1990 was the last full year for the Daytona Shelby.
This same year Chrysler had taken over sponsorship of the International Race of Champions (IROC) series, and the IROC designation, from Chevrolet and the Dodge Daytona IROC was born.
The production shift was done during the production year so the early Daytonas were badged as Shelbys while the later cars were badged as IROCs. Therefore, except for badging, the Shelby and the IROC were exactly the same.
The 2.2 liter intercooled VNT Turbo II was replaced by a new high-torque 2.5 liter Turbo I engine. The Turbo I had the same torque ratings as the 1990 VNT Turbo II, but produced less horsepower. It was mated with a Gertrag five-speed manual transaxle.
The optional three-speed automatic came with the standard Turbo I.
The Shelby IROC package included a redesigned sports suspension with stiffer springs, performance-tuned front and rear McPherson gas-charged struts/shocks and larger anti-roll bars power-assisted front and rear vented discs brakes and steering was handled through a power-steering rack-style configuration.
Goodyear Eagle radials P205/55ZR16 were mounted on 16×6.0-in directional cast aluminum “pumper” wheels.
The exterior included performance ground effects and graphics. The interior remained pretty much the same as the ’90 model.