The first breakage of the day: the (temporary) plate that holds the rear suspension blocks for the front arms. It happened on the first jump when I tried to roll over it but went slightly too quick. The front end dropped about 20-30cm and it broke in half.
Luckily some people helped me to do a trackside repair: a cut up piece of motor guard from one driver, a Dremel from another driver, a bit of creativity and I had it back up and running within an hour or so. This repair enabled me to run all the other laps with the FF the rest of the day... about 20 of them.
This is the broken suspension arm. It's a strange breakage: The suspension shaft is still on the car and it came off in a slight brush with a kerb. If you look closely it seems the part delaminated (cracking through a layer here and there switching to another layer). There is almost no material that broke away when the arm came off (and what broke off broke off in an odd place. The cracking probably happened on the bumps and the hops it made in those laps, making a crack. The brush against the kerb was enough to flex the material and pull the arm off the suspension shaft.
There are carbon parts and stronger 3D print parts on the way so I can soon test it again, but I'd prefer to have something as a backup for the upcoming event, so if I can find time for it I'll also make some arms by hand from a plate of material (probably sacrificing a cutting board or something)
