Media mentions Mercedes'Diana had crashed into a stanchion of a tunnel at a speed of 190 km / hour on the panel because Odometer pending at this location. It was later reported that the car's speed was estimated at 95-110 km / hour, and a tachometer on the dashboard of a car fitted with Mercedes-Benz W140 S-Class is the speed readout said. Digital and could not read the speed on the screen directly after the accident. Whether any given speed. The vehicle shall be driven at a speed exceeding 50 km / h, which is not exactly a speed of 50 g / h is the speed limit for the road tunnel in France..