Had a nearly new XS stop start as a courtesy car yesterday, didnt realise it had stop start until I came to a junction and thought I had stalled it (us auto drivers dont tend to need a clutch ) I have never driven a vehicle with stop start before but must admit I am very impressed with the smoothness and speed of the restart - fuel economy was also good - 45mpg. The only problem I found with it was passers by thinking I had stalled everytime I came to a set of traffic lights!