Jaguar XK120

vs

Mercedes-Benz 300 SL

UK vs Germany — 1948 vs 1955

Jaguar XK120 (1948)
Mercedes-Benz 300 SL (1955)
Specifications
XK120 Roadster300 SL Gullwing
Horsepower160 hp215 hp
Torque203 lb-ft
Engine Size3,442 cc2,996 cc
0-60 mph8.8 sec
Top Speed161 mph
¼ Mile16.3 sec
Weight2,855 lbs
Wheelbase2,590 mm2,400 mm
Length4,420 mm4,520 mm
Units Produced7,6121,400
Original MSRP$6,820
Value (Excellent)$280,000$3,000,000
Collectibility5/1010/10
Rarity10/109/10
The Verdict

Numbers favor the 1955 Mercedes-Benz 300 SL Gullwing with more power, greater rarity, stronger collectibility. The 1948 Jaguar XK120 Roadster offers better value, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.

Overview

The rivalry between UK and Germany automotive industries has produced legendary matchups, and the 1948 Jaguar XK120 Roadster versus 1955 Mercedes-Benz 300 SL Gullwing is among the most fascinating. These two cars represent the best of their national engineering schools. The 1955 Mercedes-Benz 300 SL Gullwing holds a clear advantage in raw power with 215 hp compared to 160 hp, a 55-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Jaguar XK120 uses a Inline-6 displacing 3,442 cc, while the Mercedes-Benz 300 SL relies on a Inline-6 SOHC with 2,996 cc. 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 7,612 examples. On the collector market, the 1955 Mercedes-Benz 300 SL Gullwing commands a significant premium over the 1948 Jaguar XK120 Roadster, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1955 Mercedes-Benz 300 SL Gullwing rates higher among enthusiasts and auction houses.