1982 saw the debut of the "Cross-Fire Injection" fuel delivery system. This TBI (Throttle Body Fuel Injection) was not the type of fuel injection installed previously in some C1 and C2 Corvettes. It utilized two throttle bodies combined with Chevrolet's computer control system. The engine produced and was mated to a new four-speed automatic transmission with torque converters bypass in the top three gears. Compared to the previous Turbo-Hydramatic 3-speed, the new 700-R4 transmission had a lower first and second gear for improved low-end acceleration, and a fourth gear overdrive that would reduce engine RPM by 30 percent at highway cruising speeds, resulting in better fuel economy. On the downside, the new transmission was not considered a strong unit and proved problematic. The final model C3 Corvette's published performance numbers were 0-60 mph in 7.9 seconds-the quarter-mile in 16.1 at . This was the last year for 8-track tape availability and new "cross-fire injection" emblems appeared on front fenders. Nose and fuel door crossed-flags emblems changed to a more squared design.