Picked up my E500 2 weeks ago and put in almost 1000 miles now. Does not pull to the right, keyless go works perfectly, HK sound system sounds great, drive dynamic seat is OK but can probably do without it, cannot tell if the active ventilated seat is worthwhile until summer but the heated portion is pretty good, distronics works great. Does notice the dreaded ticking engine sound, almost like pinging. Have not read any thread on the solar panel. I have the option but really cannot tell if it works. Does anybody know if there is any control on the system ? The owner's manual doesn't say much about it.