Porsche 928

vs

BMW M6

Germany vs Germany — 1977 vs 1983

Porsche 928 (1977)
BMW M6 (1983)
Specifications
928 GTSM6 E24
Horsepower350 hp256 hp
Torque354 lb-ft251 lb-ft
Engine Size5,397 cc3,453 cc
0-60 mph5.2 sec6.4 sec
Top Speed171 mph158 mph
¼ Mile13.6 sec14.5 sec
Weight3,329 lbs
Wheelbase2,500 mm2,626 mm
Length4,520 mm4,755 mm
Units Produced2,9045,855
Original MSRP$56,000
Value (Excellent)$130,000$100,000
Collectibility5/108/10
Rarity6/107/10
The Verdict

On balance, the 1977 Porsche 928 GTS makes a stronger case on paper with more power, quicker acceleration, higher top speed. However, the 1983 BMW M6 E24 counters with stronger collectibility, and its appeal extends beyond mere numbers. Choose the 1977 Porsche 928 GTS for outright capability, or the 1983 BMW M6 E24 for a more distinctive ownership experience.

Overview

In the world of Grand Tourer cars, few comparisons generate as much discussion as the 1977 Porsche 928 GTS versus the 1983 BMW M6 E24. Both hail from Malaise era and represent the pinnacle of their respective manufacturers' ambitions. The 1977 Porsche 928 GTS holds a clear advantage in raw power with 350 hp compared to 256 hp, a 94-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Porsche 928 uses a V8 DOHC 32V displacing 5,397 cc, while the BMW M6 relies on a Inline-6 DOHC 24V with 3,453 cc. In the sprint to 60 mph, the 1977 Porsche 928 GTS edges ahead at 5.2 seconds versus 6.4 seconds. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference. From a collectibility standpoint, the 1983 BMW M6 E24 rates higher among enthusiasts and auction houses.