This is most likely because of a difference in brake balance. In AMS2 it is set to 70/30. Try doing the test again but set the brake balance to something like 60/40. What's happening at the moment is that only the front wheels are locking up so the rears still have grip which will pull the car back into line rather than spin. If you set the brake balance further back you will be able to get all wheels locking together in which case you'll spin like in AMS1. Even further back and you won't be able to not spin when braking.
That's exactly what i do, almost every car i have to set the brake bias more towards the rear. The default brake bias in most cars are not good, you don't use 70/30 for a rwd race car IRL.
Thank you for your answers and suggestions. I tested with default setups. The ARC Camaro in AMS1 has 70:30 brake bias on default and I also did not change it, in AMS2 I cannot change it in game. Its not possible for me to get it to slide, but I am also not a good driver. I am not sure where the force which pulls the car back comes from. Feels like a magnet. But maybe there is a better physical explanation for it. Maybe the flick did not throw the car out of its straight trajectory and the engine is so heavy in the front and the front tire grip so low laterally at this point that the front mass still wants to go straight and pulls this way.
This actually makes a lot of sense as a lot of cars in AMS2 have the brake bias a bit too far forwards. I wonder if the values have mostly been transferred over but the new physics engine / tyre model mean that the bias is now incorrect in the majority of cases. As I said before it is because your front wheels are locking up but not the rear wheels. This means that the front wheels have very little grip but the rear ones have plenty. The effect of that will be to straighten up the car in the direction of travel. When tuning a car you can tweak the brake balance to make the car more stable under braking by moving it forwards (more likely to understeer into a corner) or make the car easier to rotate when braking by moving it back (more likely to oversteer into a corner).
