Another contest I've participated earlier was annual Group 25 car model contest. At that one I've got 2nd and 3rd as well with Lotus 79 1979 and Ferrari 248F1 respectively. Also not a great turnaround of F1 models. 7 total, with 4 being mine. That fiction ping racing car tool 1st place.
Strangely great Lotus 25 model did not get anything. Lightning was quite poor in the contest room. And I didn't get to see other models well. However I had a great chat with few other modelers interested in F1 domain, but who did not bring any built models.