I recently purchased my father 2011 X5d to replace my 2010 X5d (pictures below) since he was getting a 2012. Both vehicles are bone stock. Exact same options, Y spoke wheels etc. The problem is after driving the 2011 for a few days it seems slower, specifically when the turbos first start to spool in that torquey/boosty stage of acceleration. It definitely doesnt feel like it has the same torque. So I took the car in yesterday, they ran diagnostics and compression and said the car is perfect. Can anyone clue me in on why the 2011 might feel different?

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