I don't think anyone has a true figure as they were special order cars and I heard it was a £3k option so I don't think many we're of Swartz black rumours have it that 20-30 2wd and 45-50 in 4x4 if true is another matter but one thing for sure since I've had mine I searched and only come across a handful in 2wd or 4x4 of each unless some one can get permission to search Dvla to see what's left on there records its well known fack there's not mant left