USA vs USA — 1968 vs 1973
| GTO 400 Ram Air | Grand Am 455 V8 | |
|---|---|---|
| Horsepower | 366 hp | 250 hp |
| Torque | 445 lb-ft | 390 lb-ft |
| Engine Size | 6,555 cc | 7,456 cc |
| 0-60 mph | 6.2 sec | 8.0 sec |
| Top Speed | 130 mph | 118 mph |
| ¼ Mile | 14.2 sec | 15.8 sec |
| Weight | 3,500 lbs | 4,100 lbs |
| Wheelbase | 2,845 mm | 2,845 mm |
| Length | 5,131 mm | 5,334 mm |
| Units Produced | 87,684 | 56,063 |
| Original MSRP | $3,101 | $4,353 |
| Value (Excellent) | $110,000 | $32,000 |
| Collectibility | 8/10 | 6/10 |
| Rarity | 5/10 | 5/10 |
The 1968 Pontiac GTO 400 Ram Air holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1973 Pontiac Grand Am 455 V8 brings better value and remains a compelling choice for enthusiasts who value Pontiac heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
The 1968 Pontiac GTO 400 Ram Air and 1973 Pontiac Grand Am 455 V8 share a manufacturer in Pontiac, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Pontiac brand. The 1968 Pontiac GTO 400 Ram Air holds a clear advantage in raw power with 366 hp compared to 250 hp, a 116-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Pontiac GTO uses a V8 OHV (Pontiac 400) displacing 6,555 cc, while the Pontiac Grand Am relies on a V8 OHV (Pontiac 455) with 7,456 cc. In the sprint to 60 mph, the 1968 Pontiac GTO 400 Ram Air edges ahead at 6.2 seconds versus 8.0 seconds. The Pontiac GTO carries a weight advantage, tipping the scales 600 lbs lighter. On the collector market, the 1968 Pontiac GTO 400 Ram Air commands a significant premium over the 1973 Pontiac Grand Am 455 V8, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1968 Pontiac GTO 400 Ram Air rates higher among enthusiasts and auction houses.