i don't think anyone is suggesting that the p15 will be an lmp1 competitor within a short period of time.. thought it was just a convenient thread title..
the more interesting points IMV are..
1) that the LMP1 could be more road resembling when the rules are set in 2021... (another reason why any potential entry will not be a p15 derivative)
2) that mclaren are interested in it..
clearly, if its a racing class, unless its a 'run what you brung' a la can am, which isn't happening, whatever manufacturers enter, they will all be building to the technical regs, so comparisons of Valkyrie v merc thing v p15 are not really relevant?
3) even if there are distinct classes within a race, the focus is always on who wins the overall.. even if you win your class at le mans, itself an exceptional achievement, (even if you sandbag to get a good BoP, here's looking at you ford, i haven't forgotten) , you never 'Win Le mans' unless your driving a car in the top class... except perhaps on very rare occasions, which is of course why the mclaren win remains so famous..