The twin engine Mirage 4000 was a prototype made from the single engine
Mirage 2000. The first flight
was on March 9, 1979. After the Saudi Air Force choosed for the F-15
and the French Air Force dfor the Mirage 2000, the program was cancelled
in 1980. The only build Mirage 4000 stands at the airport of Le Bourget
in Paris.