USA vs USA — 1969 vs 1966
| Mustang 428 Cobra Jet | GT40 Mk I | |
|---|---|---|
| Horsepower | 335 hp | 380 hp |
| Torque | 427 lb-ft | 332 lb-ft |
| Engine Size | 7,014 cc | 4,736 cc |
| 0-60 mph | 5.5 sec | 5.3 sec |
| Top Speed | 129 mph | 200 mph |
| ¼ Mile | 13.5 sec | 12.5 sec |
| Weight | 3,450 lbs | — |
| Wheelbase | 2,743 mm | 2,413 mm |
| Length | 4,775 mm | 4,267 mm |
| Units Produced | — | 105 |
| Original MSRP | $3,561 | — |
| Value (Excellent) | $175,000 | $12,000,000 |
| Collectibility | 9/10 | 5/10 |
| Rarity | 7/10 | 10/10 |
Two outstanding machines, each with compelling strengths. The 1969 Ford Mustang 428 Cobra Jet excels in stronger collectibility, better value, while the 1966 Ford GT40 Mk I stands out for more power, quicker acceleration, higher top speed. The best advice? Drive both if you can, then follow your instincts.
The 1969 Ford Mustang 428 Cobra Jet and 1966 Ford GT40 Mk I share a manufacturer in Ford, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Ford brand. The 1966 Ford GT40 Mk I holds a clear advantage in raw power with 380 hp compared to 335 hp, a 45-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Ford Mustang uses a V8 OHV (FE big-block) displacing 7,014 cc, while the Ford GT40 relies on a V8 OHV 16V with 4,736 cc. In the sprint to 60 mph, the 1966 Ford GT40 Mk I edges ahead at 5.3 seconds versus 5.5 seconds. On the collector market, the 1966 Ford GT40 Mk I commands a significant premium over the 1969 Ford Mustang 428 Cobra Jet, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1969 Ford Mustang 428 Cobra Jet rates higher among enthusiasts and auction houses.