Italy vs Italy — 1963 vs 1963
| 2500 GT Allemano Coupe | Grifo GL | |
|---|---|---|
| Horsepower | 245 hp | 300 hp |
| Torque | 188 lb-ft | 350 lb-ft |
| Engine Size | 2,467 cc | 5,359 cc |
| 0-60 mph | 6.5 sec | 6.4 sec |
| Top Speed | 155 mph | 162 mph |
| ¼ Mile | 14.8 sec | 14.8 sec |
| Weight | 2,072 lbs | 3,197 lbs |
| Wheelbase | 2,350 mm | 2,550 mm |
| Length | 4,090 mm | 4,445 mm |
| Units Produced | 12 | 504 |
| Original MSRP | — | $11,500 |
| Value (Excellent) | $1,500,000 | $650,000 |
| Collectibility | 10/10 | 8/10 |
| Rarity | 10/10 | 8/10 |
This matchup is remarkably close. The 1963 ATS 2500 GT Allemano Coupe offers lighter weight, greater rarity, stronger collectibility, while the 1963 Iso Grifo GL counters with more power, quicker acceleration, higher top speed. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.
The 1963 ATS 2500 GT Allemano Coupe and 1963 Iso Grifo GL stand as two of the most notable Grand Tourer cars from Muscle era. Both emerged during a period of intense competition, and choosing between them remains a passionate debate among collectors. The 1963 Iso Grifo GL holds a clear advantage in raw power with 300 hp compared to 245 hp, a 55-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the ATS 2500 GT uses a V8 DOHC displacing 2,467 cc, while the Iso Grifo relies on a V8 OHV with 5,359 cc. In the sprint to 60 mph, the 1963 Iso Grifo GL edges ahead at 6.4 seconds versus 6.5 seconds. The ATS 2500 GT carries a weight advantage, tipping the scales 1125 lbs lighter. Rarity plays a significant role here — with only 12 units built, the 1963 ATS 2500 GT Allemano Coupe is considerably scarcer than the Iso Grifo's 504 examples. From a collectibility standpoint, the 1963 ATS 2500 GT Allemano Coupe rates higher among enthusiasts and auction houses.