engine in the Z28 for 1983. Aside from the new transmissions, base coupe and Berlinetta carried on as in 1982 with very little change other than newly available colors. 1984 The dashboard pad on all models received a revised shape and finish. In the Berlinetta, the standard instrument cluster was replaced by electronic readouts, including a bar-graph tachometer and digital speedometer. The new dash came with an overhead console and pod-mounted controls for turn signals, cruise-control, HVAC, windshield wiper, and headlights. The radio was mounted inside a pod on the console that could swivel toward the driver or passenger. Drivetrain changes included the discontinuation of the LU5 305 Cross Fire V8, and the addition of a hydraulic clutch linkage on manual transmission cars. The L69 H.O. Z28 became available with an automatic transmission for the first time. The Z28's body and features remained mostly unchanged, except the fiberglass SMC hood was replaced with a steel version. Road & Track selected the 1984 Camaro/Firebird as one of twelve best cars in the world and in the Best Sports GT category in the $11,000 to $14,000 range. Car and Driver picked the 1984 Camaro Z28 as the best handling car built in the United States. 1985 For 1985, Chevrolet introduced the IROC-Z version that was named after the International Race of Champions. Offered as an option package on the Z28, the Camaro IROC-Z featured an upgraded suspension, lowered ride height, specially valved Delco-Bilstein shocks, larger diameter sway bars, a steering/frame brace known as the "wonder bar", a special decal package, and an optional Tuned Port Injection system taken from the Chevrolet Corvette. It also shared the Corvette's Goodyear "Gatorback" unidirectional tires in a 245/50/VR16 size vs. the Corvette's 255/50/VR16 size, and received unique new aluminum 5-spoke 16-by-8-inch wheels. The new wheels were designed with different offsets front and rear, resulting in the words "Front" or "Rear" cast into the wheels to distinguish which wheel went where. The Camaro IROC-Z was on Car and Driver magazine's Ten Best list for 1985. The 305 c.i. 5.0-liter TPI LB9 was rated at , with the 4-bbl 305 LG4 at 155 hp, and the 4-bbl High Output 305 L69 at . A total of 2,497 L69 IROC-Z models were made for 1985. The LB9 was available only on the Z28 and the IROC-Z model with the TH700-R4 automatic transmission. A total of 205 IROC-Zs equipped with