USA vs USA — 1964 vs 1969
| Comet Cyclone CJ 428 | Cyclone Spoiler II | |
|---|---|---|
| Horsepower | 335 hp | 335 hp |
| Torque | 440 lb-ft | 450 lb-ft |
| Engine Size | 7,014 cc | 7,014 cc |
| 0-60 mph | 6.2 sec | 6.1 sec |
| Top Speed | 130 mph | 130 mph |
| ¼ Mile | 14.1 sec | 14.2 sec |
| Weight | 3,502 lbs | 3,800 lbs |
| Wheelbase | 2,921 mm | 2,972 mm |
| Length | 5,131 mm | 5,289 mm |
| Units Produced | — | 519 |
| Original MSRP | $3,224 | $3,759 |
| Value (Excellent) | $85,000 | $150,000 |
| Collectibility | 7/10 | 9/10 |
| Rarity | 7/10 | 9/10 |
It's a closely fought contest. The 1964 Mercury Comet Cyclone CJ 428 brings lighter weight, better value to the table, and the 1969 Mercury Cyclone Spoiler II answers with quicker acceleration, stronger collectibility. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Mercury has long offered a diverse lineup, and comparing the 1964 Mercury Comet Cyclone CJ 428 with the 1969 Mercury Cyclone Spoiler II highlights the breadth of the marque's engineering philosophy. On paper, the two are remarkably close in power output, with the 1964 Mercury Comet Cyclone CJ 428 producing 335 hp and the 1969 Mercury Cyclone Spoiler II delivering 335 hp. In the sprint to 60 mph, the 1969 Mercury Cyclone Spoiler II edges ahead at 6.1 seconds versus 6.2 seconds. The Mercury Comet Cyclone carries a weight advantage, tipping the scales 298 lbs lighter. On the collector market, the 1969 Mercury Cyclone Spoiler II commands a significant premium over the 1964 Mercury Comet Cyclone CJ 428, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1969 Mercury Cyclone Spoiler II rates higher among enthusiasts and auction houses.