The EW10 J4S variant is a high performance version used in the 206 GTI 180, 206 RC, 307 Féline, 307 cc and C4 VTS. Power was raised to , although the two French brands round it up to in advertising. EW10 A is a further development of the EW10 J4, presenting somewhat higher power and torque due to the introduction of Variable valve timing (VVT). Fuel consumption is also decreased. Power is at 6000 rpm and torque at 4000 rpm. Citroën usually states and Peugeot 140 PS for the same engine.