On 22 November 1938 AMX presented its new track fitted only to the right side of a trials vehicle so that direct comparisons could be made with the old track type. After 1500 kilometres the normal track was completely worn out and the AMX track was now fitted to a second vehicle; after testing had resumed on 9 January 1939 only after 3700 km on 21 March the new track was worn. The commission concluded that the new type was clearly superior in durability, but that this was caused by the use of chrome steel that made it 70% more expensive, too pricy for the French Army.