It’s the RealAir Spitfire, once a benchmark for Flightsim (FSX) now superceeded by the technically accurate A2A aircraft.
The scenery is probably West Malling.

http://www.realairsimulations.com/spit08/intro.php?page=spit08_intro

or course, you would want to fly from Duxford, no problem…

I can’t get this Duxford scenery to install. Can you help with a full idiots guide?