Park Royal concepts & prototypes
AEC Regal IV Park Royal Prototype UK-spec (B40F) '1949Produced in a single copy
![AEC Regal IV Park Royal Prototype [UK-spec] (B40F) '1949](https://s3.wheelsage.org/format/picture/picture-thumb-medium/a/aec/park_royal/regal_iv_prototype/aec_regal_iv_park_royal_prototype_3.avif "AEC Regal IV Park Royal Prototype [UK-spec] (B40F) '1949")
![AEC Regal IV Park Royal Prototype [UK-spec] (B40F) '1949](https://s3.wheelsage.org/format/picture/picture-thumb-medium/a/aec/park_royal/regal_iv_prototype/aec_regal_iv_park_royal_prototype.avif "AEC Regal IV Park Royal Prototype [UK-spec] (B40F) '1949")
![AEC Regal IV Park Royal Prototype [UK-spec] (B40F) '1949](https://s3.wheelsage.org/format/picture/picture-thumb-medium/a/aec/park_royal/regal_iv_prototype/aec_regal_iv_park_royal_prototype_9.avif "AEC Regal IV Park Royal Prototype [UK-spec] (B40F) '1949")
AEC Routemaster RM1 Park Royal Prototype (H36/28R) '1954Produced in a single copy
AEC Routemaster RM2 Park Royal Prototype (H36/28R) '1955Produced in a single copy
Leyland B15.04 Park Royal Demonstrator (H44/27D) '11.1975Produced in a single copy
Leyland B15.05 Park Royal Demonstrator (H44/27D) '06.1977Produced in a single copy
Пятый прототип. Изначально он был выпущен в двухдверном варианте на шасси № 7703050, но в том же месяце кузов был переделан в однодверный и переставлен на шасси № 7705689.
WheelsAge.org '2005–pr.