Mercedes-Benz S-Class

vs

Mercedes-Benz S-Class

Germany vs West Germany — 1990 vs 1979

Mercedes-Benz S-Class (1990)
Mercedes-Benz S-Class (1979)
Specifications
S-Class S 600 (W140)S-Class W126 560 SEC
Horsepower394 hp300 hp
Torque420 lb-ft336 lb-ft
Engine Size5,987 cc5,547 cc
0-60 mph5.9 sec6.6 sec
Top Speed155 mph155 mph
¼ Mile14.2 sec15.0 sec
Weight3,924 lbs
Wheelbase3,040 mm2,850 mm
Length5,213 mm4,935 mm
Units Produced74,060
Original MSRP$73,000
Value (Excellent)$75,000$120,000
Collectibility5/108/10
Rarity4/105/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1990 Mercedes-Benz S-Class S 600 (W140) excels in more power, quicker acceleration, while the 1979 Mercedes-Benz S-Class W126 560 SEC stands out for stronger collectibility. The best advice? Drive both if you can, then follow your instincts.

Overview

Tracing the evolution of the Mercedes-Benz S-Class from 1990 to 1979 offers a compelling look at how automotive design and engineering progressed. These two variants showcase the changing face of Mercedes-Benz. The 1990 Mercedes-Benz S-Class S 600 (W140) holds a clear advantage in raw power with 394 hp compared to 300 hp, a 94-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Mercedes-Benz S-Class uses a V12 SOHC 24V displacing 5,987 cc, while the Mercedes-Benz S-Class relies on a V8 SOHC with 5,547 cc. In the sprint to 60 mph, the 1990 Mercedes-Benz S-Class S 600 (W140) edges ahead at 5.9 seconds versus 6.6 seconds. From a collectibility standpoint, the 1979 Mercedes-Benz S-Class W126 560 SEC rates higher among enthusiasts and auction houses.