The next vehicle designed by Simms, the Motor War Car, can be considered the world's first real armoured car. page 761, The Autocar, 26 August 1899 page 113, Catalogue, Automobile Club Show, Richmond, June 1899 Macksey, Kenneth (1980).
Namun, kendaraan berikutnya yang dirancang oleh Simms, Motor War Car-lah yang baru dianggap sebagai mobil lapis baja benar-benar pertama di dunia . ^ page 761, The Autocar, 26 August 1899 ^ page 113, Catalogue, Automobile Club Show, Richmond, June 1899 Macksey, Kenneth (1980).