The cars are performance balanced, to offer competitive racing between varying types of machinery. The Aston Martin is non-hybrid, the Toyota is a hybrid, for example.

To combat teams always blaming Balance of Performance for each bad result, the WEC rules ban criticizing BoP (I think the team agree in principle) but a repeated problem is that the methodology used by the ACO and FIA (the two organizations in charge) is flawed and when Kamui said that both cars had the exact same lap times, what he’s saying is that bad result wasn’t the driver’s fault or bad setup of one car but too harsh BoP.

The Hypercar BoP for this weekend was as following:

You can see that the Toyota was by far the heaviest and had the lowest max power.