Well.... Looks like the valve body on the transmission needs changing. Had the car into the local dealer who performed another update and while it's better, it's still hanging on a little and downshifting a little rough. Quoted price for work was £1400! Spoke to the garage who sold me the car and he's telling me to take out an extended warranty? Not happy about that but am I right in insisting he gets it fixed? Before it goes? They can apparently take a long time before they go? Not happy..