The game fully-crashed my browser around 1 minute into playing (Firefox). An impressive effort on your team's part to be sure, but, if I wanted to play Clustertrucks, I have it at home...
The truck's physics were funny to witness. Shame I couldn't join them as I kept having my jump inputs be eaten by being involuntarily launched into the air whilst running on flat ground, so my face got acquainted with the backs of trucks more-so than the roofs.