Not only possible but something like that is routine if you wanna burn the turps.
Having said that SGR was/is quite remarkable for the speed. It's all in the classic area ruled design, with supercritical and laminar flow technology you know. Start cruising at FL 450/470. Cessna worked out there was little or no traffic and lighter winds up there so you can go DTO most times.
Like its little brother the Citation 111, and V11, its quite fun watching the B7XXs going backwards underneath you. Its basically these aircraft cabin with big arse Embraer Jet size engines and an even more finely tuned wing.
Since Concordes' retirement, it is the fastest civilian aircraft and faster than a few first line fighter/bomber stealth aircraft.
Tinny old chap it was for our old mate
Torres that they also developed that wonderful drop of vin d' formidable called
Skip and Go Naked and
Sparkling Starwine 
, can't recall whether it was Penfolds or Seppelts, but then I can't recall a lot of things from those days..
Give her a bottle a bottle of that stuff and you could get the knickers off a statue of Jean d'Arc.
