Memorial weekend, traveling down the highway and the car begins to vibrate and I smell a burning smell (similar to what it smells like when you double clutch a manual too much). I pull off the road and see smoke coming from the rear left wheel and a white ring around this (see picture) are of the wheel. I cannot figure out what caused this because the automatic emergency brake works fine and there is no strange noises when applying it when stopped. The only thing that I have noticed was the low tie pressure indicator came on before entering on the highway and I stopped and check all tires and put the recommended PSI. I had it towed and probably will not know anything until Tuesday, so the long weekend without my Rover..not cool. Any ideas on the probable cause would be appreciated. Love this car, hope it is nothing major.