USA vs USA — 1963 vs 1962
| Riviera 425 Nailhead | Gran Turismo Hawk R2 Supercharged | |
|---|---|---|
| Horsepower | 340 hp | 240 hp |
| Torque | 465 lb-ft | 335 lb-ft |
| Engine Size | 6,965 cc | 4,736 cc |
| 0-60 mph | 7.7 sec | 7.8 sec |
| Top Speed | 125 mph | 120 mph |
| ¼ Mile | 15.5 sec | 16.1 sec |
| Weight | 4,200 lbs | 3,400 lbs |
| Wheelbase | 3,048 mm | 3,048 mm |
| Length | 5,334 mm | 5,156 mm |
| Units Produced | 40,000 | 592 |
| Original MSRP | $4,333 | $3,095 |
| Value (Excellent) | $85,000 | $85,000 |
| Collectibility | 8/10 | 8/10 |
| Rarity | 5/10 | 9/10 |
The 1963 Buick Riviera 425 Nailhead holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1962 Studebaker Gran Turismo Hawk R2 Supercharged brings lighter weight, greater rarity and remains a compelling choice for enthusiasts who value Studebaker heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
The 1963 Buick Riviera 425 Nailhead and 1962 Studebaker Gran Turismo Hawk R2 Supercharged stand as two of the most notable Personal Luxury cars from Muscle era. Both emerged during a period of intense competition, and choosing between them remains a passionate debate among collectors. The 1963 Buick Riviera 425 Nailhead holds a clear advantage in raw power with 340 hp compared to 240 hp, a 100-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick Riviera uses a V8 OHV (Buick 425 Nailhead) displacing 6,965 cc, while the Studebaker Gran Turismo Hawk relies on a V8 OHV with 4,736 cc. In the sprint to 60 mph, the 1963 Buick Riviera 425 Nailhead edges ahead at 7.7 seconds versus 7.8 seconds. The Studebaker Gran Turismo Hawk carries a weight advantage, tipping the scales 800 lbs lighter. Rarity plays a significant role here — with only 592 units built, the 1962 Studebaker Gran Turismo Hawk R2 Supercharged is considerably scarcer than the Buick Riviera's 40,000 examples.