just as an aside for a moment. 
I was a committee member of the Heinkel Trojan club and one of several organisers of the 1996 weston park rally .
A few weeks before the rally was to take place i bought my daughter , then 7 , a copy of one of the childrens comics. was it the Dandy or suchlike . in it was a strip containing two regular characters .
 UNBELIEVABLY and for no apparent reason the characters were attending THE  BUBBLE CAR RALLY !! the all page full colour strip was great and I immediately contacted the publishers ( D.C. Thompson , Edinburgh ? ) for permission to reprint the strip , or part of it . they were very obliging and not only sent the original artwork drawn onto acetate sheet i think it is . as well they granted us the rights to reprint as we wished for publicity purposes. werent they kind !
we loved the artwork and used it extensively on t-shirts rally plaques etc. 
That is why the signpost in the strip says bubble car rally and not NMCR ! since 1994 several times the image has been used by organisers of the NMCR. in fact they are not entitled to ,  but i have never made a point of it . i will look up sometime who was given permission to use the artwork , the club or myself , i think the latter . The Heinkel Trojan Archive Trust has the paperwork but its stored safely away . 
my only point really was that really people ought to seek permission from the copyright owners for what is obviously professional artwork . unlikely but possible that someone might take exception to it one day   
oh and by the way, the answer ,  HTOEC didnt organise an NMCR but its successor The Heinkel Trojan Club Ltd did