Was driving the vehicle at 70mph on the freeway. a "thunk" sound occurred and the car began decelerating rapidly despite pressing down on the gas pedal. check engine light turned on and the car continued to decelerate. cabin filled with a small amount of smoke. came to a complete stop and the car would no longer accelerate at all. turned the car off and then on to get it the final 100 feet to a gas station. parked and the car smelled like smoke/burning in the cabin and the engine compartment. turned off the vehicle until a tow truck arrived. when tow truck arrived, turned vehicle on to turn off electric parking brake; all electronics in the vehicle were acting up and could not turn off parking brake for a good 15 minutes. finally got it off and towed to the closest dealer. *dt *tr