Jaguar XK120

vs

Porsche 356

UK vs Germany — 1948 vs 1955

Jaguar XK120 (1948)
Porsche 356 (1955)
Specifications
XK120356 Speedster 1600 Super
Horsepower180 hp75 hp
Torque195 lb-ft
Engine Size3,442 cc1,582 cc
0-60 mph10.0 sec
Top Speed120 mph
¼ Mile17.5 sec
Wheelbase2,591 mm2,100 mm
Length4,420 mm3,950 mm
Units Produced12,0554,145
Value (Excellent)$250,000$700,000
Collectibility5/105/10
Rarity5/1010/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1948 Jaguar XK120 excels in more power, better value, while the 1955 Porsche 356 Speedster 1600 Super stands out for greater rarity. The best advice? Drive both if you can, then follow your instincts.

Overview

Putting the 1948 Jaguar XK120 against the 1955 Porsche 356 Speedster 1600 Super is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — UK versus Germany. The 1948 Jaguar XK120 holds a clear advantage in raw power with 180 hp compared to 75 hp, a 105-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 Porsche 356 relies on a Flat-4 with 1,582 cc. On the collector market, the 1955 Porsche 356 Speedster 1600 Super commands a significant premium over the 1948 Jaguar XK120, reflecting differences in prestige and rarity.