Porsche 928

vs

Jaguar XJ-S

Germany vs UK — 1977 vs 1981

Porsche 928 (1977)
Jaguar XJ-S (1981)
Specifications
928 GTSXJ-S V12 HE
Horsepower350 hp299 hp
Torque354 lb-ft
Engine Size5,397 cc5,343 cc
0-60 mph5.2 sec
Top Speed171 mph
¼ Mile13.6 sec
Wheelbase2,500 mm2,591 mm
Length4,520 mm4,770 mm
Units Produced2,904
Value (Excellent)$130,000$45,000
Collectibility5/105/10
Rarity6/1010/10
The Verdict

It's a closely fought contest. The 1977 Porsche 928 GTS brings more power to the table, and the 1981 Jaguar XJ-S V12 HE answers with better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.

Overview

The rivalry between Germany and UK automotive industries has produced legendary matchups, and the 1977 Porsche 928 GTS versus 1981 Jaguar XJ-S V12 HE is among the most fascinating. These two cars represent the best of their national engineering schools. The 1977 Porsche 928 GTS holds a clear advantage in raw power with 350 hp compared to 299 hp, a 51-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Porsche 928 uses a V8 DOHC 32V displacing 5,397 cc, while the Jaguar XJ-S relies on a V12 with 5,343 cc. On the collector market, the 1977 Porsche 928 GTS commands a significant premium over the 1981 Jaguar XJ-S V12 HE, reflecting differences in prestige and rarity.