In 1984 London Buses was experimenting with new vehicles before deciding on which model to purchase in the future. Three examples were purchased from Leyland (Olympian), Dennis (Dominator), MCW (Metrobus Mark II) and Volvo. The Volvos were all Alexander bodied Ailsas. V1 (A101SUU) was displayed at a special event at Chiswick Works alongside a new Metrobus for the guided busway in Birmingham.
 
Ailsa V3 (A103SUU) was the most interesting of all the experimental fleet. Advantage was taken of the Ailsa's front engine to produce a dual door version with the second pair of doors at the rear of the bus. The "Borismaster" was born ahead of its time. The bus ended its LT days with London Northern at Potters Bar, where it sustained roof damage and was sold to Black Prince of Morley. Black Prince repaired the bus and closed the rear platform and put it into service with its large Ailsa fleet.
 
Fully restored, V3 appeared at North Weald offering rides to rally goers. This view compliments the view above by showing the unique rear platform arrangement. The bus was then owned by Blue Triangle.
 
Volvo V3 made an unexpected appearance at SHOWBUS 2009.
 
Jotus Models of Hong Kong produced a limited edition model of V3 and brought it to sell at SHOWBUS in 2009.