The design was heavily influenced by London Transport’s requirements, such as the option of dual and single door variants, and two of the five B15 prototypes were extensively tested in London. Production was initially carried out by Park Royal Vehicles, with the first Titan – as the B15 was known – entering service in August 1978. However, production was hampered by delays, including the closure of Park Royal and the transfer of production to Workington, which resulted in a number of Titan orders being cancelled. As a consequence, London Transport became almost the sole customer for the new bus.

This model depicts registration CUL 167V, a 1980-built Titan that was formerly London Transport’s T167. It is presented in its 1994 condition as London & Country fleet number 911, and finished in London & Country’s distinctive two-tone green, complete with London Transport Service stickers. The model carries Route 188 to Euston blinds.