UK vs Italy — 1968 vs 1967
| XJ6 Series I 4.2 | Fidia V8 | |
|---|---|---|
| Horsepower | 245 hp | 300 hp |
| Torque | 283 lb-ft | 340 lb-ft |
| Engine Size | 4,235 cc | 5,359 cc |
| 0-60 mph | 8.8 sec | 8.5 sec |
| Top Speed | 122 mph | 135 mph |
| ¼ Mile | 16.5 sec | 16.5 sec |
| Weight | 3,722 lbs | 3,638 lbs |
| Wheelbase | 2,762 mm | 2,860 mm |
| Length | 4,972 mm | 4,970 mm |
| Units Produced | 82,127 | 192 |
| Original MSRP | $6,560 | $16,000 |
| Value (Excellent) | $75,000 | $150,000 |
| Collectibility | 7/10 | 7/10 |
| Rarity | 5/10 | 8/10 |
Numbers favor the 1967 Iso Fidia V8 with more power, quicker acceleration, higher top speed. The 1968 Jaguar XJ6 Series I 4.2 offers better value, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
The rivalry between UK and Italy automotive industries has produced legendary matchups, and the 1968 Jaguar XJ6 Series I 4.2 versus 1967 Iso Fidia V8 is among the most fascinating. These two cars represent the best of their national engineering schools. The 1967 Iso Fidia V8 holds a clear advantage in raw power with 300 hp compared to 245 hp, a 55-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Jaguar XJ6 uses a Inline-6 DOHC displacing 4,235 cc, while the Iso Fidia relies on a V8 OHV with 5,359 cc. In the sprint to 60 mph, the 1967 Iso Fidia V8 edges ahead at 8.5 seconds versus 8.8 seconds. Rarity plays a significant role here — with only 192 units built, the 1967 Iso Fidia V8 is considerably scarcer than the Jaguar XJ6's 82,127 examples. On the collector market, the 1967 Iso Fidia V8 commands a significant premium over the 1968 Jaguar XJ6 Series I 4.2, reflecting differences in prestige and rarity.