Despite its name it is an off-road endurance race, called a rally-raid rather than a conventional rally – the terrain the competitors traverse is much tougher and the vehicles used are true off-road vehicles rather than the modified on-road vehicles used in rallies. Most of the competitive special sections are off-road, crossing dunes, mud, camel grass, rocks and erg among others. The distances of each stage covered vary from short distances up to 800–900 kilometres (500–560 mi) per day.