I photographed this car in the pit garage at the SeeRed meeting at Donington Park in September 2006.
It's shown in the programme of the event as Alan Couper's 1959 Kieft Climax, with an engine capacity of 1098cc. I've not been able to find out much about this car, but it differs from photographs I've seen of all the other Kieft 1100 sports cars, which have a front grille like the one that I featured on 31 January 2016. I suspect the car above may be the one described in this H&H Auctioneers offering of 26 July 2006. If it is, then it's chassis #K321.