150 BTM was the first car actually sold by Marcos to a customer. John Sutton is adamant he was the first to actually place an order with Marcos, but Jem seems to have decided to grant the first delivery of 1960 to Bill Moss.
The car was originally built with cycle wings, like the prototype, but with the new Ford 105E engine. It later got a all-enveloping aluminium bonnet, designed and constructed by Frank Costin and John Sutton.
150 BTM at Goodwood (left picture). Also note the prototype DFF529 in the background
Sold to Jack Gates in 1961 (above) and then to Tommy Simpson (below).
The current whereabouts of this car are unknown
Thanks to Per Hagermark for sending me the pictures of 150 BTM.