UK vs Germany — 1981 vs 1978
| XJ-S V12 HE | 928 4.5 | |
|---|---|---|
| Horsepower | 299 hp | 240 hp |
| Torque | — | 273 lb-ft |
| Engine Size | 5,343 cc | 4,474 cc |
| 0-60 mph | — | 6.8 sec |
| Top Speed | — | 143 mph |
| ¼ Mile | — | 15.1 sec |
| Weight | — | 3,197 lbs |
| Wheelbase | 2,591 mm | 2,500 mm |
| Length | 4,770 mm | 4,445 mm |
| Units Produced | — | 15,800 |
| Original MSRP | — | $28,500 |
| Value (Excellent) | $45,000 | $55,000 |
| Collectibility | 5/10 | 8/10 |
| Rarity | 10/10 | 6/10 |
Two outstanding machines, each with compelling strengths. The 1981 Jaguar XJ-S V12 HE excels in more power, better value, while the 1978 Porsche 928 4.5 stands out for stronger collectibility. The best advice? Drive both if you can, then follow your instincts.
Putting the 1981 Jaguar XJ-S V12 HE against the 1978 Porsche 928 4.5 is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — UK versus Germany. The 1981 Jaguar XJ-S V12 HE holds a clear advantage in raw power with 299 hp compared to 240 hp, a 59-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Jaguar XJ-S uses a V12 displacing 5,343 cc, while the Porsche 928 relies on a V8 SOHC with 4,474 cc. From a collectibility standpoint, the 1978 Porsche 928 4.5 rates higher among enthusiasts and auction houses.