I just posted this in the Technical Forum but perhaps it's better suited here, seeing as I don't own a turbo. I recently bought a 2010 5-speed Auto XR6. It always makes a "clunk" sound when changing from Park to Reverse or Reverse to Drive or Drive to Park and so on. The dealer told me this is normal. After doing some reading it seems common for the 5-speed Auto. However, is it damaging my transmission? Also, ocassionally when I drive I notice that when it changes gear it makes a clunking sound, and it sounds as though it's coming from under the bonnet. This only started to happen over the last 2 weeks. It has happend over a dozen times now. And it happens in both Performance Mode and Automatic Mode. Is this normal? And, more importantly,is this damaging my transmission? I'm getting worried that my gearbox (if it is actually the transmission) is going to die on me much sooner than it ought to. Is this likely? I'd appreciate any feedback on my questions. I spent $24,000 on this car; I expect everything to be in tip-top order. Thanks guys!