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For better traction, the Corvette Z06’s tires are larger than the largest tires available on the Roma (F:275/30R20 & R:345/25R21 vs. F:245/35R20 & R:285/35R20).
The Corvette’s standard 305/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the Roma’s standard 35 series tires. The Corvette Z06’s 275/30R20 front and 345/25R21 rear tires have a lower 30 series front and 25 series rear profile than the Roma’s 35 series tires.
For better ride, handling and brake cooling the Corvette Z06 has standard 21-inch rear wheels. The Roma’s largest wheels are only 20-inches.
The Corvette has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Roma doesn’t offer vehicle monitored tire inflation.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Corvette can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Roma doesn’t offer run-flat tires.