Boris beat me to it, but what about the Citation X ? If memory serves me right, this is a M 0.92 aircraft. Ah well, what Boeing meant is probably "fastest commercial aircraft, built by Boeing, seating more than 400 passengers, with a MTOW in excess of 400 tons, built by Boeing, powered by US engines, offering fastfood heaters, built by Boeing, and you may safely stuff your sleak pom/frog non-profit making fuel to noise converter 'cause it wasn't built by Boeing or any other US company".
CV990
TU154M
VC10
Citation X
Global Express
G-V
PR, the art of converting facts into glitter.