Very very special replica West McLaren

I have a large scale model which I think may be very rare and collectable. I wonder what anyone may think or know about it?It is a West Mclaren (Mika Hakkinen car) at a scale of about 1:4 - 1:6. It is over 1m long in a clear presentation box. I understand that it was actually made by McLaren themselves. The source of the model would suggest to me that it is a genuine item.I only got it today so am just interested in seeing if any info is out there before I take the cover off and look in greater detail.Internet searches reveal some 1:8 models by a well known replica maker but this is definitely something different to anything I can find anywhere else.Any info of interest