1. edit the sound on black, the sound changed to blue
2. Added the tanks on 5 spectacled 3-axle trailer
3. Reduced to 50l. tank on blue
4. Added a set of wheels with chains
5. Other improvements
Postscript machines terrain settings were not changed !!!

Now the two cars.
Distinguishing features:
Black become walkable (slightly increased engine performance, modified gearbox, the differential is locked, increase the volume of the fuel tank)
Blue received previous features black.