Ford Thunderbird (fourth generation)

Fourth generation Ford Thunderbird
1964 Thunderbird Landau
Overview
Manufacturer	Ford
Production	1964–1966
Assembly	Wixom, Michigan
Body and chassis
Body style	2-door hardtop coupe 2-door convertible
Layout	FR layout
Powertrain
Engine	390 cu in (6.4 L) FE V8 427 cu in (7.0 L) FE V8 428 cu in (7.0 L) FE V8
Transmission	Cruise-O Matic MX automatic Ford C6 automatic
Chronology
Predecessor	Ford Thunderbird (third generation)
Successor	Ford Thunderbird (fifth generation)

The fourth generation of the Ford Thunderbird is a large personal luxury car produced by Ford for the 1964 to 1966 model years. This generation of the Thunderbird was restyled in favor of a more squared-off, "formal" look. The Thunderbird's sporty image had by that time become only that: the standard 390-cubic-inch 300 bhp (224 kW) V8 engine needed nearly 11 seconds to push the heavy T-bird to 60 mph (96 km/h). The softly sprung suspension allowed considerable body lean, wallow, and float on curves and bumps. Contemporary testers felt that the Buick Riviera and Pontiac Grand Prix were substantially more roadworthy cars, but the Thunderbird retained its leading market share.

The revised model was initially offered as a hardtop, convertible, Sports Roadster with dealer-installed tonneau cover and wire wheels, and Landau with vinyl roof, simulated landau irons, and wood grain interior appointments. Total 1964 sales were excellent: 92,465, up nearly fifty per cent from the previous year, but with only 50 Sports Roadster kits were sold from the factory. The 1964 Thunderbird was the only car to have the word 'Thunderbird' spelled out on the front hood instead of a chrome Thunderbird emblem. The only transmision available was the Cruise-O-Matic MX 3 speed automatic.

Several features intended for the new generation were delayed until 1965, when front disc brakes became standard equipment and sequential turn signals which flashed three bulbs in the broad, horizontal tail lights from inside to outside were added; the latter had been delayed by vehicle lighting regulations in U.S. states. Exterior trim was revised, including a new grille, Thunderbird emblem replacing the block letters on the front edge of the hood, simulated front fender vent trim, revised Thunderbird scripts now located on the rear edge of the 1/4 panels, and revised taillight lens trim and center emblem replacing the lens Birds and block letters respectively. Sales, impacted by increasing competition , including cannibalism by Ford's own newly introduced Mustang), dipped to 74,972. Again, the Cruise-O-Matic MX automatic was the only transmission available.

For 1966, the 390-cubic-inch V8's power was increased to 315 bhp (235 kW). The larger 428-cubic-inch (7.0 L) V-8 became optional, rated at 345 gross horsepower (257.4 kW) and providing a notable improvement in 0-60 acceleration to about 9 seconds. All models featured a new front clip. A flatter hood, re-shaped front fenders, new headlight buckets, new egg crate grille with large Thunderbird emblem, new bumper guards, a single bumper bar, and painted roll pan replaced the previous two model year's two-piece front bumper. The rear taillights were revised, now a 3 piece unit going the full width across the rear, the backup light now located in the center section replaced the formerly rear roll pan mounted lamps. A new Town Hardtop model was offered, featured a roof with blind quarter panels for a more 'formal' look (at the cost of rear visibility). The Landau was replaced by the blind quarter formal roofed Town Landau, which retained the previous model's padded roof and landau S-bars. It became by far the best-selling model, accounting for 35,105 of the 1966 model's 69,176 sales. The transmission used on early build 390 V8 equipped T-Birds was the Cruise-O-Matic MX, however late build 390 and all 428 V8 equipped T-Birds had the new C6 3 speed automatic installed.