The P.100 was one of several designs submitted by Boulton Paul in response to Specification F. 6/42 which called for a 'highly manoeuvrable single seat low attack aircraft'. The P.100 was an innovative and forward-thinking design with features that were maybe too advanced for the time such as the unique 'jaw' at the nose which allowed the pilot to escape without danger of hitting the pusher propeller. The successful submission would have needed to have been in full-scale production by January 1944, The P.100 was completely untested and would have required a leap of faith by the RAF. After assessing this and several other projects it was finally agreed that the role was best suited to a modified existing type: in this case the Hawker Typhoon, Hawker Tempest and a ground attack variant (Mk IV) of the Hawker Hurricane.
Span 40' 2" (12.2m)
Length 34' 2" (10.4m)
335 mph (571 Km/h) @ 17,000 ft (5,182m)
Proposed armament included 4 x 20mm Cannon, 2 x 40mm + 2 x 20mm canon, one 47mm Vickers cannon + 2 20mm guns.
External weapons including 8 x RP3 Rockets or 2 x 500 lb. bombs.
Power was to be supplied by a 1760 hp Rolls Royce Griffon II driving contra-rotating propellers.
I know it was never built, but it would be a great plane for tank busting!!
More pictures: http://www.xplanes3d.com/Projects/BP_P100/webpages/BP_P100_thumbs.html