Italy vs Italy — 1963 vs 1962
| 2500 GT Allemano Coupe | Rivolta IR 300 | |
|---|---|---|
| Horsepower | 245 hp | 300 hp |
| Torque | 188 lb-ft | 340 lb-ft |
| Engine Size | 2,467 cc | 5,359 cc |
| 0-60 mph | 6.5 sec | 7.5 sec |
| Top Speed | 155 mph | 142 mph |
| ¼ Mile | 14.8 sec | 15.5 sec |
| Weight | 2,072 lbs | 2,998 lbs |
| Wheelbase | 2,350 mm | 2,650 mm |
| Length | 4,090 mm | 4,690 mm |
| Units Produced | 12 | 797 |
| Original MSRP | — | $8,700 |
| Value (Excellent) | $1,500,000 | $200,000 |
| Collectibility | 10/10 | 7/10 |
| Rarity | 10/10 | 7/10 |
The 1963 ATS 2500 GT Allemano Coupe holds an edge across most measurable criteria, offering quicker acceleration, higher top speed, lighter weight. That said, the 1962 Iso Rivolta IR 300 brings more power, better value and remains a compelling choice for enthusiasts who value Iso heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Among Grand Tourer enthusiasts, the matchup between the 1963 ATS 2500 GT Allemano Coupe and 1962 Iso Rivolta IR 300 is one for the ages. These Muscle era machines competed directly for buyers' attention and continue to vie for collectors' affections today. The 1962 Iso Rivolta IR 300 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 Rivolta relies on a V8 OHV with 5,359 cc. In the sprint to 60 mph, the 1963 ATS 2500 GT Allemano Coupe edges ahead at 6.5 seconds versus 7.5 seconds. The ATS 2500 GT carries a weight advantage, tipping the scales 926 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 Rivolta's 797 examples. On the collector market, the 1963 ATS 2500 GT Allemano Coupe commands a significant premium over the 1962 Iso Rivolta IR 300, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1963 ATS 2500 GT Allemano Coupe rates higher among enthusiasts and auction houses.