Jaguar XK120

vs

Porsche 550 Spyder

UK vs Germany — 1948 vs 1955

Jaguar XK120 (1948)
Porsche 550 Spyder (1955)
Specifications
XK120 Roadster550 Spyder
Horsepower160 hp110 hp
Torque90 lb-ft
Engine Size3,442 cc1,498 cc
0-60 mph8.5 sec
Top Speed137 mph
¼ Mile16.0 sec
Weight1,300 lbs
Wheelbase2,590 mm2,100 mm
Length4,420 mm3,700 mm
Units Produced7,61290
Original MSRP$6,500
Value (Excellent)$280,000$7,000,000
Collectibility5/1010/10
Rarity10/1010/10
The Verdict

This matchup is remarkably close. The 1948 Jaguar XK120 Roadster offers more power, better value, while the 1955 Porsche 550 Spyder counters with greater rarity, stronger collectibility. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.

Overview

When UK engineering meets Germany craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1948 Jaguar XK120 Roadster and 1955 Porsche 550 Spyder embody their respective national automotive traditions while competing in the same arena. The 1948 Jaguar XK120 Roadster holds a clear advantage in raw power with 160 hp compared to 110 hp, a 50-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 550 Spyder relies on a Flat-4 DOHC 8V with 1,498 cc. Rarity plays a significant role here — with only 90 units built, the 1955 Porsche 550 Spyder is considerably scarcer than the Jaguar XK120's 7,612 examples. On the collector market, the 1955 Porsche 550 Spyder commands a significant premium over the 1948 Jaguar XK120 Roadster, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1955 Porsche 550 Spyder rates higher among enthusiasts and auction houses.