Cutlass Supreme series, including the sport coupe (with center post), Holiday hardtop coupe and convertible. Standard equipment on all models included Strato bucket seats or no-cost notchback bench seat, full carpeting, expanded Morocceen vinyl upholstery, heavy-duty suspension with rear sway bar, and wide-oval tires. Like all cars sold in the U.S. for 1967, the 4-4-2 came standard with a group of occupant protection and accident avoidance features mandated by Federal law. This package included an energy-absorbing steering column and safety steering wheel, padded dash, recessed controls, four-way hazard flashers, and a dual-circuit brake hydraulic master cylinder. Production rose somewhat from the previous year, rising to 24,833. Second generation 1968 The 4-4-2 became a separate model from 1968 through 1971. The wheelbase was , and over 33,000 were sold for 1968. Despite the engine displacement staying at 400 CID, the engine was based on the new 455 V8's 4.25 stroke, with the bore decreased (to 3.87). Torque came at 3000–3200 rpm as opposed to the early 400's 3600 rpm peak, mostly due to a milder base cam grind. Car Life tested a 1968 4-4-2 with a 3.42:1 rear axle ratio and Hydramatic and attained 0–60 times of 7.0 seconds, and a quarter-mile time of 15.13 seconds at . Top speed was reported as . The base engine was still rated at , but only with the standard three-speed and optional four-speed; automatics were rated at . W-30s were rated again at . Car Life also tested a four-speed W-30 with a 4.33 rear end and recorded a 13.3 at . All standard 1968 4-4-2 engines are painted a bronze–copper color, as with the 1967s, topped with a fire-red air cleaner. W-30 option cars were equipped with ram air intake hoses leading from chrome-topped dual snorkel black air cleaners to special under-bumper air scoops and set off by bright red plastic fender wells. In addition, a Turnpike Cruiser option was made available with a two-barrel carburetor; this was previously available on the Cutlass Supreme for 1967. 1968 was the first year for side marker lights and front outboard shoulder belts, and the last year for vent windows on hardtops and convertibles. 4-4-2s for 1968 had unique rear bumpers, with exhaust cutouts and special exhaust tips. Hurst/Olds In 1968 Oldsmobile partnered with Hurst Performance Research Corporation to create the Hurst/Olds rather than just adding Hurst shifters as with earlier models. The limited regular