 Service was wherever the service crews could reach and was usually limited to a change of tires, refueling and, if the team was lucky, only minor repairs, since any time used for service had to be made up on the road by the driver.In the 1960s and 70s more than half of the competitive distance on the classic rallies was run at night.For example, Monte Carlo Rally had long sections running through the Chartreuse mountains between Chambéry and Grenoble before crossing the Rhone valley and continuing in what was often the deeply snowbound and ice covered Ardèche, all in the same night.