2005-2011, 300?

I just bought a 2011 hemi awd 300c to split mileage on my truck .I don't think anyone mentioned that the 11 is a different car than 05-10 and the awd system is different (supposedly better integration).You cannot disable the awd even with the esp button off. Unlike the older cars it runs rwd only and awd on torque demand. If you shut off the traction control it locks awd on. The car is a 4300# leather filled rocket.