USA vs USA — 1966 vs 2008
| GTO Tri-Power 389 | G8 GXP 6.2 LS3 | |
|---|---|---|
| Horsepower | 360 hp | 415 hp |
| Torque | 424 lb-ft | 415 lb-ft |
| Engine Size | 6,374 cc | 6,162 cc |
| 0-60 mph | 6.2 sec | 4.7 sec |
| Top Speed | 130 mph | 170 mph |
| ¼ Mile | 14.0 sec | 12.9 sec |
| Weight | — | 3,995 lbs |
| Wheelbase | 2,946 mm | 2,915 mm |
| Length | 5,156 mm | 4,979 mm |
| Units Produced | 96,946 | 1,829 |
| Original MSRP | — | $39,995 |
| Value (Excellent) | $130,000 | $60,000 |
| Collectibility | 5/10 | 7/10 |
| Rarity | 4/10 | 8/10 |
The 2008 Pontiac G8 GXP 6.2 LS3 emerges ahead in most objective measures, offering more power, quicker acceleration, higher top speed. The 1966 Pontiac GTO Tri-Power 389 counters with its unique character, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
Within the Pontiac stable, the 1966 Pontiac GTO Tri-Power 389 and 2008 Pontiac G8 GXP 6.2 LS3 represent different approaches to performance and purpose. Both carry the Pontiac badge, yet each carves out its own distinct identity. The 2008 Pontiac G8 GXP 6.2 LS3 holds a clear advantage in raw power with 415 hp compared to 360 hp, a 55-horsepower difference that shapes the driving experience. In the sprint to 60 mph, the 2008 Pontiac G8 GXP 6.2 LS3 edges ahead at 4.7 seconds versus 6.2 seconds. Rarity plays a significant role here — with only 1,829 units built, the 2008 Pontiac G8 GXP 6.2 LS3 is considerably scarcer than the Pontiac GTO's 96,946 examples. From a collectibility standpoint, the 2008 Pontiac G8 GXP 6.2 LS3 rates higher among enthusiasts and auction houses.