PhysicsEngine does not check collisions of cars
simulation.vehicle.PhysicsEngine is a method
computeCollision(), which should compute collisions of a car with physical objects. The check for a car is wrong in this line: https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/simulators/simulation/blob/master/vehicle/src/main/java/simulation/vehicle/PhysicsEngine.java#L77 . As the comment says, collision should not be computed if the object is not a car, but the actual code does not compute collision if it IS a car.