France vs France — 1964 vs 1970
| 1000 Rallye 2 | GS Birotor | |
|---|---|---|
| Horsepower | 103 hp | 107 hp |
| Torque | 83 lb-ft | 100 lb-ft |
| Engine Size | 1,294 cc | 1,990 cc |
| 0-60 mph | 10.0 sec | 13.5 sec |
| Top Speed | 109 mph | 109 mph |
| ¼ Mile | 17.0 sec | 19.2 sec |
| Weight | 1,742 lbs | 2,425 lbs |
| Wheelbase | 2,220 mm | 2,550 mm |
| Length | 3,750 mm | 4,120 mm |
| Units Produced | 25,000 | 847 |
| Value (Excellent) | $40,000 | $120,000 |
| Collectibility | 6/10 | 9/10 |
| Rarity | 8/10 | 10/10 |
Two outstanding machines, each with compelling strengths. The 1964 Simca 1000 Rallye 2 excels in quicker acceleration, lighter weight, better value, while the 1970 Citroen GS Birotor stands out for greater rarity, stronger collectibility. The best advice? Drive both if you can, then follow your instincts.
Among Compact Car enthusiasts, the matchup between the 1964 Simca 1000 Rallye 2 and 1970 Citroen GS Birotor is one for the ages. These Muscle era machines competed directly for buyers' attention and continue to vie for collectors' affections today. On paper, the two are remarkably close in power output, with the 1964 Simca 1000 Rallye 2 producing 103 hp and the 1970 Citroen GS Birotor delivering 107 hp. Under the hood, the contrast is notable: the Simca 1000 Rallye uses a Inline-4 OHV displacing 1,294 cc, while the Citroen GS relies on a Twin-rotor Wankel with 1,990 cc. In the sprint to 60 mph, the 1964 Simca 1000 Rallye 2 edges ahead at 10.0 seconds versus 13.5 seconds. The Simca 1000 Rallye carries a weight advantage, tipping the scales 683 lbs lighter. Rarity plays a significant role here — with only 847 units built, the 1970 Citroen GS Birotor is considerably scarcer than the Simca 1000 Rallye's 25,000 examples. On the collector market, the 1970 Citroen GS Birotor commands a significant premium over the 1964 Simca 1000 Rallye 2, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1970 Citroen GS Birotor rates higher among enthusiasts and auction houses.