The Budgie Bedford tanker . The green and white version was marked 'Racing Service BP' sometimes numbered RT50 or 'BP' sometimes numbered RT54. The yellow version was marked 'SHELL' sometimes numbered RT51. The Shell/BP version was sometimes numbered RT52. The blue version was marked 'National' numbered RT53. The red 'Mobil' version was sometimes numbered RT55. The original price was 1/6 . It was available in red finish.