Ferrari 308 GTB

vs

Porsche 911 Turbo

Italy vs Germany — 1975 vs 1975

Ferrari 308 GTB (1975)
Porsche 911 Turbo (1975)
Specifications
308 GTB GTB Quattrovalvole911 Turbo 3.3 (930)
Horsepower240 hp300 hp
Torque190 lb-ft318 lb-ft
Engine Size2,926 cc3,299 cc
0-60 mph6.5 sec5.0 sec
Top Speed158 mph162 mph
¼ Mile14.8 sec13.3 sec
Weight2,844 lbs
Wheelbase2,340 mm2,272 mm
Length4,230 mm4,291 mm
Units Produced12,00418,770
Original MSRP$48,000
Value (Excellent)$160,000$250,000
Collectibility8/105/10
Rarity5/105/10
The Verdict

The 1975 Porsche 911 Turbo 3.3 (930) emerges ahead in most objective measures, offering more power, quicker acceleration, higher top speed. The 1975 Ferrari 308 GTB GTB Quattrovalvole counters with stronger collectibility, 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.

Overview

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 1975 Porsche 911 Turbo 3.3 (930) embody their respective national automotive traditions while competing in the same arena. The 1975 Porsche 911 Turbo 3.3 (930) holds a clear advantage in raw power with 300 hp compared to 240 hp, a 60-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 911 Turbo relies on a Flat-6 SOHC 12V Turbo with 3,299 cc. In the sprint to 60 mph, the 1975 Porsche 911 Turbo 3.3 (930) edges ahead at 5.0 seconds versus 6.5 seconds. From a collectibility standpoint, the 1975 Ferrari 308 GTB GTB Quattrovalvole rates higher among enthusiasts and auction houses.