Hi ya, I have a slight whine coming from my 307 auto (petrol) is does sound transmission related as if you take the foot of the throttle is goes quite, seems to be in 3rd gear around 30mph. Also when could on light throttle, the change from 1st to 2nd can be a little harsh. no noisy but not a smooth change. I am not sure when the gearbox oil was changed so maybe this could be first area to check. Thanks Matt.