Under Pilain 's leadership , the first Vermorel prototype was ready to be exhibited in March 1899 at the , and a few Vermorel cars had been developed and constructed by August 1901 .
Under Pilain 's leadership , the first Vermorel prototype was ready to be exhibited in March 1899 at the . 
 A few more Vermorel cars had been developed and constructed by August 1901 .