1968 The F-85/Cutlass underwent a major body restyle in 1968, as did all other GM A-body cars. Oldsmobile's was penned by the styling studio headed by
Stan Wilen. Two-door and four-door models now rode different wheelbases: for two-doors and for four-doors. Ostensibly, this change was to allow more individual styling, although several engineers were quoted off the record as saying the wheelbase had created problems with uncomfortable "freeway hop" owing to its resonance frequency. Overall length shrunk about , but curb weight rose approximately to for the hardtop coupe. Two-door F-85 and Cutlass models adopted a semi-
fastback roofline, which was a revival of a
streamlining on all GM products from 1942 until 1950 as demonstrated on the
Oldsmobile Rocket 88 Club Coupe. Base model remained the F-85, with mid-level Cutlass S, and upscale
Cutlass Supreme, as well as the 4-4-2, which became a distinct model instead of an option package. A limited-production model was the
Hurst/Olds, a special 4-4-2 marketed by Oldsmobile and
Hurst Performance. The H/O combined the 4-4-2 suspension package with a Rocket V8, not ordinarily offered in Cutlasses because of a GM policy limiting intermediates to engines of or less. Cutlass and Vista Cruiser station wagons were likewise redesigned; the F-85 wagon was discontinued. Engine options were similar to the previous year, although the Cutlass's
V8 option was expanded to , still with both two- and four-barrel carburetion. The variable-pitch
stator feature of both optional two-speed Jetaway and three-speed Turbo Hydra-matic
automatic transmissions was discontinued.
1969 The 1969 F-85/Cutlass models received only minor trim changes from their '68 counterparts such as a now-Olds trademark split grille with vertical bars and vertical taillights. Per federal safety regulations, headrests were now standard equipment and the ignition switch moved from the instrument panel to the steering column to lock the steering wheel when not in use, in common with all other 1969-model GM cars, one year before the locking steering columns were federally mandated. Engine offerings were unchanged from 1968, but a new three-speed Turbo Hydra-matic 350 transmission was added to the option list and available with all versions of the Rocket V8, including the standard two-barrel version, four-barrel "Ultra High Compression" option and the W-31 option, conservatively rated at . The two-speed Jetaway automatic was still available with the Chevy-built "Action-Line" six or the two-barrel V8. The Turnpike Cruiser two-barrel Rocket V8 was dropped and the four-barrel 400 engine from the 4-4-2 was available only in the Vista Cruiser wagons.
1970 The 1970 F-85 and Cutlass was available in seven body styles, three of which were coupes: a pillared
fastback Sports Coupe (in F-85, Cutlass S or
4-4-2 trims), an hardtop fastback Holiday Coupe (Cutlass S and 4-4-2 only), and finally a more formal
notchback Holiday Coupe, only offered in
Cutlass Supreme trim. This practice was similar to that followed at the time by Ford and Mercury for their intermediates, which were offered in both notchback and fastback coupes starting in 1968. Also available were a four-door hardtop Holiday Sedan, a four-door Town Sedan, a convertible, a flat-top station wagon called the Cutlass Cruiser, as well as the fancier
Vista-Cruiser station wagon. Counting all trim level and body style permutations, Oldsmobile's 1970 lineup included 15 different intermediate models. With GM tossing out the 400 cubic-inch limit for intermediates and the 4-4-2 now coming standard with the larger 455 cubic-inch Rocket V8 from the big Oldsmobiles and previously used in the 1968–69 Hurst/Olds, Olds discontinued the 400 engine entirely and also offered the 455 as an option in the Cutlass S models and the Vista Cruiser wagons. There was an SX option that became available in 1970 and was available only on the Cutlass Supreme hardtop and convertible. The SX cars all had the 455 engine and TH-400 automatic transmission. The same assortment of three- and four-speed manual transmissions were carried over from previous years with Hurst shifters used on floor-mounted three-speeds and all four-speeds. The two-speed Jetaway automatic transmission was discontinued entirely with the three-speed Turbo Hydra-matic now the sole offering for shiftless driving. Cutlass S coupes with the optional Strato bucket seats and Turbo Hydra-matic could be equipped with the
Hurst Dual-Gate shifter (also known as the "His and Her-Shifter") in conjunction with the extra-cost center console. The Hurst Dual-Gate made it possible to either put the transmission in Drive, and let the transmission decide when to shift. Or it could be placed in a manual mode, much like today's computer-controlled automatics. A 1970-only offering was the
Oldsmobile Rallye 350, a value-priced high-performance model using the 350 engine. It was intended for younger buyers that wanted the performance and looks of a
supercar, but might have trouble with the rising insurance premiums associated with 455-engined cars like the 4-4-2. In essence the Rallye 350 was an appearance package (coded
W45) tied to mandatory options, and could be ordered on the Cutlass S Holiday or Sports Coupe as well as on the F-85 Sports Coupe. All Rallye 350s were painted in Sebring Yellow with matching urethane-coated bumpers front and rear. The package also included special black and orange decals, blacked out grille and yellow-painted 7" wide Super Stock II
rally wheels without trim rings, wearing G70×14" bias-belted Wide Oval blackwall tires. The engine was the
L74 air-inducted high-compression 350 cu.in. Rocket V8 engine, fitted with a
Quadrajet carburetor and producing . Required options were the associated "Force-Air" fiberglass vented hood, dual exhaust with 4-4-2-style megaphone outlets, 3.23:1 axle ratio, heavy-duty "Rallye-Sport Suspension" with front and rear
stabilizers, sports mirrors and sports steering wheel.
1971 The 1971 model shared much of the same exterior sheetmetal as the 1970, but with a new hood, grille, and headlight assemblies, as well as new bumpers and taillights. Four new exterior body colors were offered, Viking Blue, Lime Green, Bittersweet, and Saturn Gold. The famous "Rocket" V8 continued in several different sizes and power options, with both the large 455 and 'small-block' 350 available with either 2- or 4-barrel carburetors. This was the last year for the 250 cubic-inch six-cylinder engine, as it had not been a popular offering in Olds intermediates. All engines were now fitted with hardened valve seats, preparing for the upcoming mandate for unleaded gasoline that took effect with the introduction of catalytic converters on 1975 models. The 1971 Olds engines also featured lowered compression ratios and designed to run on regular leaded, low-lead or unleaded gasoline with a research octane rating of 91 or higher (equivalent to 87 octane by today's octane measurements).
1972 For 1972, there were minor style changes to the Cutlass, and the 4-4-2 reverted to being a Cutlass trim line (W-29 option) instead of the distinct model it was in 1971. The primary changes to the 1972 Cutlass were the front grilles and the tail lights. The straight six engine was dropped but would return to the lineup in 1975. The
Hurst/Olds used the Cutlass Supreme notchback hardtop and convertible bodies. A 1972 Hurst/Olds paced the
Indianapolis 500, and Olds built about 630 replicas, some 25% of them convertibles. The entry-level F-85 series was reduced to solely a four-door sedan, then discontinued mid-year due to low sales. This ended the use of the F-85 nameplate, although it would later resurface in 1975 on an entry-level version of the compact Omega. ==Fourth generation (1973)==