USA vs USA — 1968 vs 1978
| Javelin SST 390 | Concord AMX | |
|---|---|---|
| Horsepower | 315 hp | 140 hp |
| Torque | 425 lb-ft | 270 lb-ft |
| Engine Size | 6,391 cc | 5,898 cc |
| 0-60 mph | 6.8 sec | 11.5 sec |
| Top Speed | 125 mph | 103 mph |
| ¼ Mile | 14.8 sec | 18.0 sec |
| Weight | 3,200 lbs | 3,300 lbs |
| Wheelbase | 2,794 mm | 2,743 mm |
| Length | 4,877 mm | 4,826 mm |
| Units Produced | 56,462 | 2,540 |
| Original MSRP | $2,740 | $5,899 |
| Value (Excellent) | $45,000 | $28,000 |
| Collectibility | 7/10 | 6/10 |
| Rarity | 6/10 | 7/10 |
On balance, the 1968 AMC Javelin SST 390 makes a stronger case on paper with more power, quicker acceleration, higher top speed. However, the 1978 AMC Concord AMX counters with greater rarity, and its appeal extends beyond mere numbers. Choose the 1968 AMC Javelin SST 390 for outright capability, or the 1978 AMC Concord AMX for a more distinctive ownership experience.
AMC has long offered a diverse lineup, and comparing the 1968 AMC Javelin SST 390 with the 1978 AMC Concord AMX highlights the breadth of the marque's engineering philosophy. The 1968 AMC Javelin SST 390 holds a clear advantage in raw power with 315 hp compared to 140 hp, a 175-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the AMC Javelin uses a V8 OHV (AMC 390) displacing 6,391 cc, while the AMC Concord relies on a V8 OHV with 5,898 cc. In the sprint to 60 mph, the 1968 AMC Javelin SST 390 edges ahead at 6.8 seconds versus 11.5 seconds. Rarity plays a significant role here — with only 2,540 units built, the 1978 AMC Concord AMX is considerably scarcer than the AMC Javelin's 56,462 examples. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.