The Camaro IROC-Z Sport Equipment package arrived for the 1985 model year as an option added to the Z28. The model was named for the International Race of Champions, in which the Camaro was the official car used by every driver. For the IROC-Z road car, the Camaro was lowered and fitted with sport suspension, stiffer steering, fog lights and unique graphics. The RPO B4Z improved handling package delivered .92g, and 0-60 mph came up in 7 seconds.

A total of 180,018 Chevrolet Camaros were sold in 1985, with 3,318 four-cylinder models, 78,315 V-6s and 98,385 V-8s. The base 88hp, 151 cid four-cylinder Sport Coupe started at $8,363. The 135hp, 173 cid V-6 Berlinetta Coupe started at $11,060. The 165hp, 305 cid V-8 Z28 also at $11,060. The Z28 was offered with two optional engines as well. The 190hp carbureted V-8 was offered with a 5-speed manual gearbox in the IROC package for about half the year, while a 215hp fuel-injected V-8 was available for the full year in both Z28 and IROC-Z configuration, but only with a 4-speed automatic transmission.

In all, 78,315 buyers paid $335 extra for the V-6 engine, 63,052 bought a 165hp V-8 (standard on the Z28), while among Z28 buyers only 2,497 shelled out $680 for the 190hp carbureted V-8 and a 5-speed. 32,836 buyers opted for the 215hp fuel-injected engine with the automatic transmission, for the same $680.

Horsepower was creeping up again, but the focus was still on luxury options like tinted windows (166,966 cars), automatic transmission (152,600), air conditioning (146,381), tilt steering wheel (133,457), rear defroster (119,137), intermittent wipers (79,051), power hatch, (93,467), sport mirrors, (93,235), Rally wheels (90,925), power windows (88,361), cruise control (84,884), power locks (70,658) and T-Tops (63,543 – for a whopping $821).

Performance options were limited but 4-wheel disc brakes were a deal at $179 (19,871), with sport suspension for $49 (19,231) and Positraction (15,327) for only $95. In all, 20,675 buyers ordered the full instrument package, which cost $149. It was not available on the Berlinetta with its digital dash, but was standard on the Z28.

Out of 12 colors the previous year, 10 were changed for the 1984 Chevrolet Camaro. Red was the favorite (31,473) followed by Black (28,438), White (18,822), Bright Blue (17,635), Medium Gray (17,545), Dark Blue (14,986), Maroon (14,903), Copper (11,406), Light Yellow (5,437), Yellow (4,599) and Light Brown (3,093).