Campbell-Napier-Railton Blue Bird
 The Campbell-Napier-Railton Blue Bird was a land speed record car driven by Malcolm Campbell. After Henry Segrave's Golden Arrow clearly a more powerful engine was required for Blue Bird with a chassis and transmission to handle it. A supercharged Napier Lion VIID was used with over three times the power of the previous Blue Bird and a large premium over Golden Arrow's unsupercharged 900 hp (670 kW) Lion VIIA.