307 does not exist. But 206 is there. You are right. 206 is a model derived from the platform of ZX (the predecessor of Fukang). The rear wheel structure is exactly the same as that of Fukang. But the platform of 307 is higher than that of 206, so it does not have PSS. Although PSS is Citroen's patent. But Peugeot acquired Citro?n in 1976 to form the PSA Group. So this patent is enjoyed by ***.