I have a smart for two, 2008 diesel, automatic trasmition, 800cc 146k km around 105k miles. The gears shif smoothly and car working fine, when in high way in 5 gear about 85 miles, i breake to take an exit the gear shift to N adn twe keys apear. I turn of the key whait for lights off and it atart fine some times may be two time i have to turn off. In the city it runs fine, only when you are in 5 gear and with high motor performance it does that and not every time. It is a funny problem and i really can not thing of any solution, i do not know if smth like this happened to anyone. Pls share if you had similar problem or might have and idea what might be the problem. Thank you.