USA vs USA — 1970 vs 1967
| Firebird Trans Am | Cougar GT 390 | |
|---|---|---|
| Horsepower | 335 hp | 320 hp |
| Torque | 480 lb-ft | 430 lb-ft |
| Engine Size | 7,456 cc | 6,391 cc |
| 0-60 mph | 5.4 sec | 6.5 sec |
| Top Speed | 130 mph | 125 mph |
| ¼ Mile | 13.5 sec | 14.8 sec |
| Weight | 3,500 lbs | 3,400 lbs |
| Wheelbase | 2,743 mm | 2,844 mm |
| Length | 4,902 mm | 4,851 mm |
| Units Produced | 3,196 | 7,412 |
| Original MSRP | $4,305 | $3,295 |
| Value (Excellent) | $150,000 | $95,000 |
| Collectibility | 9/10 | 8/10 |
| Rarity | 5/10 | 7/10 |
The 1970 Pontiac Firebird Trans Am holds an edge across most measurable criteria, offering quicker acceleration, higher top speed, greater rarity. That said, the 1967 Mercury Cougar GT 390 brings its own distinct appeal and remains a compelling choice for enthusiasts who value Mercury heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
The 1970 Pontiac Firebird Trans Am and 1967 Mercury Cougar GT 390 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. On paper, the two are remarkably close in power output, with the 1970 Pontiac Firebird Trans Am producing 335 hp and the 1967 Mercury Cougar GT 390 delivering 320 hp. Under the hood, the contrast is notable: the Pontiac Firebird uses a V8 OHV (Pontiac 455) displacing 7,456 cc, while the Mercury Cougar relies on a V8 OHV with 6,391 cc. In the sprint to 60 mph, the 1970 Pontiac Firebird Trans Am edges ahead at 5.4 seconds versus 6.5 seconds. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.