Falcon 7X can fly to City!

See
http://www.flightglobal.com/articles/2009/02/25/323088/falcon-7x-gets-green-light-to-operate-at-london-city.html

7X

“offers the most range and cabin size of any business jet permitted to fly into and out of London City”.

Indeed. out of Bombardier private jets, Challenger 605 is allowed, but Global Express is not. And no Gulfstream can fly in City.