USA vs USA — 1967 vs 1970
| Cougar XR-7 GT-E 427 | Challenger T/A 340 Six Pack | |
|---|---|---|
| Horsepower | 390 hp | 290 hp |
| Torque | 440 lb-ft | 340 lb-ft |
| Engine Size | 6,997 cc | 5,572 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 | 3,400 lbs |
| Wheelbase | 2,819 mm | 2,794 mm |
| Length | 4,887 mm | 4,871 mm |
| Units Produced | 394 | 2,399 |
| Original MSRP | $4,050 | $3,590 |
| Value (Excellent) | $200,000 | $250,000 |
| Collectibility | 9/10 | 9/10 |
| Rarity | 9/10 | 9/10 |
The 1967 Mercury Cougar XR-7 GT-E 427 holds an edge across most measurable criteria, offering more power, higher top speed, greater rarity. That said, the 1970 Dodge Challenger T/A 340 Six Pack brings quicker acceleration and remains a compelling choice for enthusiasts who value Dodge heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
The 1967 Mercury Cougar XR-7 GT-E 427 and 1970 Dodge Challenger T/A 340 Six Pack stand as two of the most notable Pony Car cars from Muscle era. Both emerged during a period of intense competition, and choosing between them remains a passionate debate among collectors. The 1967 Mercury Cougar XR-7 GT-E 427 holds a clear advantage in raw power with 390 hp compared to 290 hp, a 100-horsepower difference that shapes the driving experience. In the sprint to 60 mph, the 1970 Dodge Challenger T/A 340 Six Pack edges ahead at 5.8 seconds versus 5.9 seconds. Rarity plays a significant role here — with only 394 units built, the 1967 Mercury Cougar XR-7 GT-E 427 is considerably scarcer than the Dodge Challenger's 2,399 examples. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.