With the increasing speeds and professional nature of GT3 racing, there is a perception among many manufacturers that a GT4 programme would entice gentlemen drivers put off by the expensive nature and no-prisoners attitude of GT3 racing these days.
Porsche is known to be developing a race version of its Cayman GT4 and Mercedes-Benz is canvassing opinion widely to assess the viability of a GT4 programme for the AMG GT which has yet to go on sale even in GT3 form.
"We are looking at it," said a senior source at McLaren, "and working out where it fits in our race strategy from F1 downwards. We would need to be confident of being able to do it at a price that made sense both to us and our customers."
McLaren has not ruled out a return to Le Mans either. Twenty years after it became only the second manufacturer to win the 24-hour race at the first time of asking, a Le Mans programme is not likely in the short term but is believed to remain a long term ambition for the Woking brand.