Jaguar XK120

vs

Mercedes-Benz 300 SL

UK vs Germany — 1948 vs 1955

Jaguar XK120 (1948)
Mercedes-Benz 300 SL (1955)
Specifications
XK120300 SL Gullwing
Horsepower180 hp215 hp
Torque195 lb-ft203 lb-ft
Engine Size3,442 cc2,996 cc
0-60 mph10.0 sec8.8 sec
Top Speed120 mph161 mph
¼ Mile17.5 sec16.3 sec
Weight2,855 lbs
Wheelbase2,591 mm2,400 mm
Length4,420 mm4,520 mm
Units Produced12,0551,400
Original MSRP$6,820
Value (Excellent)$250,000$3,000,000
Collectibility5/1010/10
Rarity5/109/10
The Verdict

The 1955 Mercedes-Benz 300 SL Gullwing emerges ahead in most objective measures, offering more power, quicker acceleration, higher top speed. The 1948 Jaguar XK120 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.

Overview

Putting the 1948 Jaguar XK120 against the 1955 Mercedes-Benz 300 SL Gullwing is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — UK versus Germany. The 1955 Mercedes-Benz 300 SL Gullwing holds a clear advantage in raw power with 215 hp compared to 180 hp, a 35-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Jaguar XK120 uses a Inline-6 DOHC 12V displacing 3,442 cc, while the Mercedes-Benz 300 SL relies on a Inline-6 SOHC with 2,996 cc. In the sprint to 60 mph, the 1955 Mercedes-Benz 300 SL Gullwing edges ahead at 8.8 seconds versus 10.0 seconds. Rarity plays a significant role here — with only 1,400 units built, the 1955 Mercedes-Benz 300 SL Gullwing is considerably scarcer than the Jaguar XK120's 12,055 examples. On the collector market, the 1955 Mercedes-Benz 300 SL Gullwing commands a significant premium over the 1948 Jaguar XK120, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1955 Mercedes-Benz 300 SL Gullwing rates higher among enthusiasts and auction houses.