Ford constructed 3,489 Mustangs with the 428 Cobra Jet for the 1970 mannequin yr. That’s a good quantity, although nothing like 1969’s excessive of 13,261. Nonetheless, convertibles with the identical engine are extraordinarily uncommon—in truth, between 1968-70, Cobra Jet-powered Mustang convertibles are fairly rarer than equal Shelbys.

At the Barrett-Jackson 2025 Scottsdale Auction, AutoHunter had the privilege to pore over this 1970 Mustang convertible outfitted with the 428 Cobra Jet. Ever discover how modern rivals supplied a efficiency mannequin (‘Cuda, Firebird 400, Challenger R/T, Camaro SS) accessible as a convertible? Yet Ford didn’t provide a Mach I convertible, however we will see the vendor or earlier proprietor added the Mach I grille to this automobile—it appears unbelievable.
Ditto the Shaker hood scoop, which might make this Mustang one among 33 constructed. But Ford supplied two variations of the Cobra Jet, one with the Shaker (“R” within the VIN) and one with out (“Q”). The automobile in query was constructed as a Q-code Mustang, so it’s one among 14; of these, 9 featured an computerized transmission. At the Barrett-Jackson 2025 Scottsdale Auction, this exact vehicle bought for an astounding $396,000 together with charges.
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