USA vs USA — 1967 vs 1970
| Cougar XR-7 GT-E 427 | Firebird Formula 400 | |
|---|---|---|
| Horsepower | 390 hp | 330 hp |
| Torque | 440 lb-ft | 430 lb-ft |
| Engine Size | 6,997 cc | 6,555 cc |
| 0-60 mph | 5.9 sec | 5.8 sec |
| Top Speed | 135 mph | 130 mph |
| ¼ Mile | 13.8 sec | 14.0 sec |
| Weight | 3,400 lbs | 3,500 lbs |
| Wheelbase | 2,819 mm | 2,743 mm |
| Length | 4,887 mm | 4,912 mm |
| Units Produced | 394 | — |
| Original MSRP | $4,050 | $3,370 |
| Value (Excellent) | $200,000 | $85,000 |
| Collectibility | 9/10 | 8/10 |
| Rarity | 9/10 | 6/10 |
Two outstanding machines, each with compelling strengths. The 1967 Mercury Cougar XR-7 GT-E 427 excels in more power, higher top speed, stronger collectibility, while the 1970 Pontiac Firebird Formula 400 stands out for quicker acceleration, better value. The best advice? Drive both if you can, then follow your instincts.
Among Pony Car enthusiasts, the matchup between the 1967 Mercury Cougar XR-7 GT-E 427 and 1970 Pontiac Firebird Formula 400 is one for the ages. These Muscle era machines competed directly for buyers' attention and continue to vie for collectors' affections today. The 1967 Mercury Cougar XR-7 GT-E 427 holds a clear advantage in raw power with 390 hp compared to 330 hp, a 60-horsepower difference that shapes the driving experience. In the sprint to 60 mph, the 1970 Pontiac Firebird Formula 400 edges ahead at 5.8 seconds versus 5.9 seconds. On the collector market, the 1967 Mercury Cougar XR-7 GT-E 427 commands a significant premium over the 1970 Pontiac Firebird Formula 400, reflecting differences in prestige and rarity.