Tire heating became visible. You can now overheat your slicks after three laps on the "West Coast" racetrack, resulting in a drop in grip. Conversely, tire warmers were added to the garage menu. Drag racing in this version became a science of managing rubber temperature.
In earlier v0.18 versions, crashing two vehicles at a combined speed of 300+ mph often caused the physics solver to "explode"—sending car parts flying into the stratosphere due to floating-point rounding errors. Version introduced a new iteration limit for collision detection. In layman's terms: the game now spends more CPU cycles ensuring that when a tire hits a curb, it actually stops rather than phasing through it. BeamNG.drive v0.18.4.1