Italy vs Germany — 1975 vs 1981
| 308 GTB GTB Quattrovalvole | 930 Turbo Flachbau Slantnose | |
|---|---|---|
| Horsepower | 240 hp | 330 hp |
| Torque | 190 lb-ft | 318 lb-ft |
| Engine Size | 2,926 cc | 3,299 cc |
| 0-60 mph | 6.5 sec | 4.6 sec |
| Top Speed | 158 mph | 168 mph |
| ¼ Mile | 14.8 sec | 12.8 sec |
| Weight | 2,844 lbs | 2,943 lbs |
| Wheelbase | 2,340 mm | 2,272 mm |
| Length | 4,230 mm | 4,291 mm |
| Units Produced | 12,004 | 948 |
| Original MSRP | $48,000 | $85,000 |
| Value (Excellent) | $160,000 | $650,000 |
| Collectibility | 8/10 | 9/10 |
| Rarity | 5/10 | 8/10 |
The 1981 Porsche 930 Turbo Flachbau Slantnose emerges ahead in most objective measures, offering more power, quicker acceleration, higher top speed. The 1975 Ferrari 308 GTB GTB Quattrovalvole counters with better value, 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.
When Italy engineering meets Germany craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1975 Ferrari 308 GTB GTB Quattrovalvole and 1981 Porsche 930 Turbo Flachbau Slantnose embody their respective national automotive traditions while competing in the same arena. The 1981 Porsche 930 Turbo Flachbau Slantnose holds a clear advantage in raw power with 330 hp compared to 240 hp, a 90-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Ferrari 308 GTB uses a V8 DOHC 32V displacing 2,926 cc, while the Porsche 930 Turbo relies on a Flat-6 SOHC Turbocharged 12V with 3,299 cc. In the sprint to 60 mph, the 1981 Porsche 930 Turbo Flachbau Slantnose edges ahead at 4.6 seconds versus 6.5 seconds. Rarity plays a significant role here — with only 948 units built, the 1981 Porsche 930 Turbo Flachbau Slantnose is considerably scarcer than the Ferrari 308 GTB's 12,004 examples. On the collector market, the 1981 Porsche 930 Turbo Flachbau Slantnose commands a significant premium over the 1975 Ferrari 308 GTB GTB Quattrovalvole, reflecting differences in prestige and rarity.