Ford Mustang Mach 1
The 1969 Mustang restyle increased body length by 3.8 inches (97 mm) (with the wheelbase remaining at 108 inches) and width by almost half an inch. This was the first model to use quad headlamps placed inside and outside the grille opening. The corralled grille pony was replaced with the pony and tribars logo, set off-center to the drivers side.
It featured a 302 cu in (4.9 L) V8 engine with 220 hp (164 kW). The 351cid V-8 was introduced in 1969, and was available with 250 or 290 hp. For those wanting more power, the 335-hp 428cid Cobra Jet V-8 big block was available with or without Ram-Air.
The new Mach 1, with a variety of new powerplants, added many car styling and performance features. It used dual exhausts and steel wheels with bold-lettered Goodyear Polyglas tires. Reflective striping was placed along the body sides, with a pop-off gas cap, matte-black hood with simulated air scoop and NASCAR-style cable and pin tiedowns. A functional "shaker" hood scoop which visibly vibrated by being attached directly to the air cleaner through a hole in the hood was available, as were a tail-mounted wing and chin spoilers and rear window louvered blackout shade. The Boss 302 Mustang was created to meet Trans Am rules and the Boss 429 was created to homologate that engine for NASCAR use, it featured distinctive hockey-stick stripes. Also for the first time Grande appeared - it was deluxe trim available for hardtop only.
The 1970 model moved the headlamps inside the grille opening, added vent looking front corners on the outside of the headlamps, and removed the rear fender air scoops.
In 1969 Ford introduced (it was conceived by Ford) new Shelby Mustang, it was drastically different looking than serial Mustang. There were two models; GT-350 and GT-500, offered as sportsroof and convertible. All 1969–1970 Shelby Mustangs were produced in 1969 as sales were falling down and 789 remaining 1969 cars were titled as 1970 models. They had modified front air dam and a blackout point treatment around the hood scoops.
Ford made 96 'Mustang Twister Special' cars for Kansas Ford dealers in 1970. The Twister Specials were Grabber Orange Mach 1's with special decals. Ford also made a few 'Sidewinders', which were built in Dearborn, shipped to Omaha, and sold in Iowa and Nebraska. They were available in Grabber Green, Grabber Blue, Calypso Corral, and Yellow. The stripes came in the trunk to be installed by dealers.
Sources: Mecum Auctions; Wikipedia, 2011