There are several people/team around the world building gt40 monocoques, either from the drawings or other methods that bring them very close to the authentic car, but from my review I can not see any competition among the builders. I belive that all of us building this juvel , have our own time schedule for when the car is ready, and have no problem seeing some other working faster.
Number one rule for me is that there is no deviation from the original drawing. And hand build all parts (no parts to buy in the shop) so speed is not actual here only the accuracy.