Ford redesigned its Thunderbird sports performance line from the ground up in 1967. The new look models were called the 'Glamor Birds,' to reflect their bold, flashy lines. The 1967 Ford Thunderbird was bigger than its predecessors: the growing success of the Mustang had inspired the guys in Dearborn to differentiate the TBird from its hot-selling Pony car, so the Thunderbird got a makeover and an upsizing toward the 'luxury car' class. The '67 Thunderbird had a completely different look from past models. A futuristic re-envisioning of the front end drew its inspiration from aeronautics: the grille layout, with its recessed headlights, were meant to suggest a jet engine's intake. The convertible option was discontinued, and the 1967 Thunderbird was the first to offer a four-door body style (the rear-opening 'suicide doors' never quite caught on with the buying public, though). Under the hood, the '67 Ford Thunderbird came off the line with a 6.3 liter/390 cubic inch V-8 that delivered 315 horsepower; buyers could upgrade to a 7.0 liter/428 cubic inch V8 with a 345-horsepower output. The '67 T-Bird is a real muscle car, with great performance in street and stock racing. But it's the wacky and distinctive design details (like sequential taillights, narrow rear window, and blocky C-pillars) that earned it the name 'Glamour Bird'.