I standard trim this has to be one of the best auto boxes ever made, it can handle the power including BPU at a later stage if you wish, I found the limit when pushed to 500BHP and then I decided to have a 6 speed conversion otherwise I would still be Auto for sure, a great box with several options with over drive, manaul mode and sedate town driving on straight auto mode, when you floor it the kick down is quick and from then on the power is smooth and well delivered with excellent pick up, very little change in the delivery of acceleration through the gears, ask some of the single 6 speed members (me included) how well the auto's did at Santa pod this year, they were very quick as I found it hard to get the power down when I was in control of the clutch along with an over eager right foot !!