Despite its theoretical advantages, the BT55 proved uncompetitive, suffering from poor traction and numerous mechanical failures caused by oil scavenge problems in the tilted engine.
Malia as súas vantaxes teóricas, o BT55 demostrou non ser competitivo, tiña mala tracción e numerosas fallas mecánicas causadas por problemas de varrido de aceite no motor inclinado.