Jaguar XK120

vs

Porsche 356A

UK vs Germany — 1948 vs 1957

Jaguar XK120 (1948)
Porsche 356A (1957)
Specifications
XK120 Roadster356A Speedster
Horsepower160 hp60 hp
Torque81 lb-ft
Engine Size3,442 cc1,582 cc
0-60 mph14.5 sec
Top Speed100 mph
¼ Mile19.5 sec
Weight1,852 lbs
Wheelbase2,590 mm2,100 mm
Length4,420 mm3,950 mm
Units Produced7,6121,171
Original MSRP$2,995
Value (Excellent)$280,000$700,000
Collectibility5/1010/10
Rarity10/108/10
The Verdict

It's a closely fought contest. The 1948 Jaguar XK120 Roadster brings more power, better value to the table, and the 1957 Porsche 356A Speedster answers with greater rarity, stronger collectibility. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.

Overview

The rivalry between UK and Germany automotive industries has produced legendary matchups, and the 1948 Jaguar XK120 Roadster versus 1957 Porsche 356A Speedster is among the most fascinating. These two cars represent the best of their national engineering schools. The 1948 Jaguar XK120 Roadster holds a clear advantage in raw power with 160 hp compared to 60 hp, a 100-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 Porsche 356A relies on a Flat-4 OHV 8V with 1,582 cc. Rarity plays a significant role here — with only 1,171 units built, the 1957 Porsche 356A Speedster is considerably scarcer than the Jaguar XK120's 7,612 examples. On the collector market, the 1957 Porsche 356A Speedster commands a significant premium over the 1948 Jaguar XK120 Roadster, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1957 Porsche 356A Speedster rates higher among enthusiasts and auction houses.