Northamptonshire version 1.0 (aka Silverstone) is default ISI content. If however, like myself, you originally installed rFactor Light, you may not have it. So here it is.
The download includes 3 layouts;
British Grand Prix - 5.141km
British RF3 Championship - 3.619km
Sports Car Challenge - 2.638km
The track is wide, with good run off for close and fun racing.
This track is uploaded here primarily for members or RD HistorX Racing Club, so no pics necessary.
All RD users are, of course, welcome to make use of this resource.