Hi everyone Thanks for all the feedback so far. Dan - in your experience should there be any 'hesitation' in this engine at any speed? My engine has a definite 'vibration/slight mis-fire at approx 2200 with no load but when driving it is at lower revs. eg the ride is not smooth at about 2000-2200 in 3rd, about 1700 rpm in 4th or about 1500 in 5th. This car never feels smooth - even on smooth roads. Update on what has happened today - I took the car to RRG Bolton (the car being supplied by RRG Salford) - the workshop controller was great - he had a drive but said that it was not much unlike other Avensis's he had driven. Anyway he did check and clean out the airflow meter and checked the spark plugs. But this made no difference. He did say that if I booked the car in he would do further checks for me but I have decided to pursue the matter with RRG Salford. So I rang RRg Salford to see where they were up to - as they had promised to check with Toyota for me. Anyway, the upshot is that they have requested that an engineer from Toyota checks out my car when he next visits them. When driving my car back from Bolton (about 40 miles) I thought that it must be the worse car I have driven in the last 30 years. So much for progress!! Keep your comments coming - I need all the help I can get. Thanks again. Regards Martin