France vs France — 1970 vs 1986
| GS Birotor | AX GTI | |
|---|---|---|
| Horsepower | 107 hp | 100 hp |
| Torque | 100 lb-ft | 89 lb-ft |
| Engine Size | 1,990 cc | 1,360 cc |
| 0-60 mph | 13.5 sec | 8.7 sec |
| Top Speed | 109 mph | 118 mph |
| ¼ Mile | 19.2 sec | 16.8 sec |
| Weight | 2,425 lbs | 1,587 lbs |
| Wheelbase | 2,550 mm | 2,290 mm |
| Length | 4,120 mm | 3,530 mm |
| Units Produced | 847 | — |
| Value (Excellent) | $120,000 | $15,000 |
| Collectibility | 9/10 | 5/10 |
| Rarity | 10/10 | 7/10 |
The 1986 Citroen AX GTI emerges ahead in most objective measures, offering quicker acceleration, higher top speed, lighter weight. The 1970 Citroen GS Birotor counters with stronger collectibility, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
Within the Citroen stable, the 1970 Citroen GS Birotor and 1986 Citroen AX GTI represent different approaches to performance and purpose. Both carry the Citroen badge, yet each carves out its own distinct identity. On paper, the two are remarkably close in power output, with the 1970 Citroen GS Birotor producing 107 hp and the 1986 Citroen AX GTI delivering 100 hp. Under the hood, the contrast is notable: the Citroen GS uses a Twin-rotor Wankel displacing 1,990 cc, while the Citroen AX relies on a Inline-4 SOHC with 1,360 cc. In the sprint to 60 mph, the 1986 Citroen AX GTI edges ahead at 8.7 seconds versus 13.5 seconds. The Citroen AX carries a weight advantage, tipping the scales 838 lbs lighter. On the collector market, the 1970 Citroen GS Birotor commands a significant premium over the 1986 Citroen AX GTI, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1970 Citroen GS Birotor rates higher among enthusiasts and auction houses.