1.4 and 1.6 is a noticeable difference, but tbh if you got a 1.4 and didnt drive a 1.6 you mind it. 1.4 is acceptable, dont expect to be beating everything off the lights but they are fine on motorways etc, if you want a bit more then obviously get the 1.6, worth the extra wait but a 1.4 isnt a bad car if you cant find a 1.6