Jaguar XKSS

vs

Jaguar XJ-C

UK vs UK — 1957 vs 1975

Jaguar XKSS (1957)
Jaguar XJ-C (1975)
Specifications
XKSSXJ-C 5.3 V12
Horsepower262 hp285 hp
Torque240 lb-ft304 lb-ft
Engine Size3,442 cc5,343 cc
0-60 mph5.2 sec7.4 sec
Top Speed149 mph143 mph
¼ Mile13.2 sec15.5 sec
Weight2,249 lbs4,090 lbs
Wheelbase2,286 mm2,764 mm
Length3,912 mm4,902 mm
Units Produced161,855
Original MSRP$6,900$18,500
Value (Excellent)$18,000,000$150,000
Collectibility10/108/10
Rarity10/108/10
The Verdict

The 1957 Jaguar XKSS holds an edge across most measurable criteria, offering quicker acceleration, higher top speed, lighter weight. That said, the 1975 Jaguar XJ-C 5.3 V12 brings better value and remains a compelling choice for enthusiasts who value Jaguar heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.

Overview

Within the Jaguar stable, the 1957 Jaguar XKSS and 1975 Jaguar XJ-C 5.3 V12 represent different approaches to performance and purpose. Both carry the Jaguar badge, yet each carves out its own distinct identity. The 1975 Jaguar XJ-C 5.3 V12 holds a clear advantage in raw power with 285 hp compared to 262 hp, a 23-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Jaguar XKSS uses a Inline-6 DOHC (XK) displacing 3,442 cc, while the Jaguar XJ-C relies on a V12 SOHC with 5,343 cc. In the sprint to 60 mph, the 1957 Jaguar XKSS edges ahead at 5.2 seconds versus 7.4 seconds. The Jaguar XKSS carries a weight advantage, tipping the scales 1841 lbs lighter. Rarity plays a significant role here — with only 16 units built, the 1957 Jaguar XKSS is considerably scarcer than the Jaguar XJ-C's 1,855 examples. On the collector market, the 1957 Jaguar XKSS commands a significant premium over the 1975 Jaguar XJ-C 5.3 V12, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1957 Jaguar XKSS rates higher among enthusiasts and auction houses.