v3.3.0

Added

• New Enable Physics toggle in a new Physics card, below Traffic (off by default), marked
  BETA. When on, every generated vehicle gets a dynamic Rigidbody and a configurable physic
  material (Mass/Drag/Angular Drag/Physic Material), so it responds realistically to
  impacts from other vehicles, from any external Rigidbody in the scene, or from static geometry,
  and recovers back onto its route afterwards once it settles. With the toggle off, generation and
  runtime behaviour are unchanged from before this feature. Turning it on shows an info box
  warning that it's still beta, may cause unexpected vehicle behaviour, and recommending against
  a high vehicle count relative to the generated city's size. Pedestrians never push a vehicle
  around under this mode: a generated pedestrian has no Rigidbody (infinite mass, as far as the
  physics engine is concerned), so its contact with a vehicle is suppressed outright and never
  counts as an impact. The player keeps colliding with vehicles exactly as before.