Germany vs UK — 1977 vs 1975
| 928 GTS | XJS V12 Coupe | |
|---|---|---|
| Horsepower | 350 hp | 285 hp |
| Torque | 354 lb-ft | 320 lb-ft |
| Engine Size | 5,397 cc | 5,343 cc |
| 0-60 mph | 5.2 sec | 7.6 sec |
| Top Speed | 171 mph | 150 mph |
| ¼ Mile | 13.6 sec | 15.7 sec |
| Weight | — | 3,954 lbs |
| Wheelbase | 2,500 mm | 2,591 mm |
| Length | 4,520 mm | 4,869 mm |
| Units Produced | 2,904 | 115,413 |
| Original MSRP | — | $19,000 |
| Value (Excellent) | $130,000 | $55,000 |
| Collectibility | 5/10 | 6/10 |
| Rarity | 6/10 | 4/10 |
On balance, the 1977 Porsche 928 GTS makes a stronger case on paper with more power, quicker acceleration, higher top speed. However, the 1975 Jaguar XJS V12 Coupe counters with stronger collectibility, better value, and its appeal extends beyond mere numbers. Choose the 1977 Porsche 928 GTS for outright capability, or the 1975 Jaguar XJS V12 Coupe for a more distinctive ownership experience.
The rivalry between Germany and UK automotive industries has produced legendary matchups, and the 1977 Porsche 928 GTS versus 1975 Jaguar XJS V12 Coupe 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 285 hp, a 65-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 XJS relies on a V12 SOHC with 5,343 cc. In the sprint to 60 mph, the 1977 Porsche 928 GTS edges ahead at 5.2 seconds versus 7.6 seconds. Rarity plays a significant role here — with only 2,904 units built, the 1977 Porsche 928 GTS is considerably scarcer than the Jaguar XJS's 115,413 examples. On the collector market, the 1977 Porsche 928 GTS commands a significant premium over the 1975 Jaguar XJS V12 Coupe, reflecting differences in prestige and rarity.