We just got a Saxo 1.1 - 2001 - 87k miles, drives really well apart from one issue. When trying to hold a constant speed with just a touch of the throttle applied, there is a hesitancy/judder - which is cleared if you either ease right off or apply more throttle.
I have booked the car in for a thorough service (as it has no history for the last 50k miles) and would like to have some ideas of what might cause this problem beforehand.
Thanks