Italy vs Italy — 1929 vs 1980
| 6C 1750 Gran Sport Zagato Spider | GTV6 2.5 | |
|---|---|---|
| Horsepower | 85 hp | 160 hp |
| Torque | — | 159 lb-ft |
| Engine Size | 1,752 cc | 2,492 cc |
| 0-60 mph | — | 7.9 sec |
| Top Speed | 96 mph | 127 mph |
| ¼ Mile | — | 16.1 sec |
| Weight | 1,852 lbs | 2,601 lbs |
| Wheelbase | 2,745 mm | 2,400 mm |
| Length | 3,900 mm | 4,285 mm |
| Units Produced | 218 | 22,647 |
| Original MSRP | — | $19,500 |
| Value (Excellent) | $8,000,000 | $45,000 |
| Collectibility | 10/10 | 7/10 |
| Rarity | 10/10 | 6/10 |
It's a closely fought contest. The 1929 Alfa Romeo 6C 1750 Gran Sport Zagato Spider brings lighter weight, greater rarity, stronger collectibility to the table, and the 1980 Alfa Romeo GTV6 2.5 answers with more power, higher top speed, better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Alfa Romeo has long offered a diverse lineup, and comparing the 1929 Alfa Romeo 6C 1750 Gran Sport Zagato Spider with the 1980 Alfa Romeo GTV6 2.5 highlights the breadth of the marque's engineering philosophy. The 1980 Alfa Romeo GTV6 2.5 holds a clear advantage in raw power with 160 hp compared to 85 hp, a 75-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Alfa Romeo 6C 1750 Gran Sport uses a Inline-6 DOHC Supercharged displacing 1,752 cc, while the Alfa Romeo GTV6 relies on a V6 SOHC with 2,492 cc. The 1980 Alfa Romeo GTV6 2.5 claims a higher top speed at 127 mph compared to 96 mph. The Alfa Romeo 6C 1750 Gran Sport carries a weight advantage, tipping the scales 749 lbs lighter. Rarity plays a significant role here — with only 218 units built, the 1929 Alfa Romeo 6C 1750 Gran Sport Zagato Spider is considerably scarcer than the Alfa Romeo GTV6's 22,647 examples. On the collector market, the 1929 Alfa Romeo 6C 1750 Gran Sport Zagato Spider commands a significant premium over the 1980 Alfa Romeo GTV6 2.5, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1929 Alfa Romeo 6C 1750 Gran Sport Zagato Spider rates higher among enthusiasts and auction houses.