Looks great!!
Not sure how much realism you are going for but if you want to tweek it a bit for more realism as a former CDL-A driver I noticed it is possible in the demo to turn at fast speeds (not that it really matters, its a game) but just for reference: at high speed... even an empty trailer which is fairly heavy would tend to push the cab right over the curb if a sharp turn was made. With a heavy load also likely resulting in a jackknife and/or trailer flipping over. It looks very good as it is just throwing in my 2 cents.
Most perpendicular turns even with empty trailer in RL would require slowing down to about 5 mph, or wide turns (ie off-ramp from an interstate) would require safe speed of no more than 10 or so mph depending on cargo weight (if I remember correctly).
If you can get it a bit more accurate you might even be able to sell it to CDL driving schools.
Hope this helps! Keep up the great work!
