Extensions: You can easily build as one is just funny, it does not cost-game money that simply does not exist
Vehicles: standing around everywhere, you just have to find and drive
Damaged Vehicles: The vehicles that can be found, are mostly defective, or the tank is empty, what I find in principle well so you grab a tank truck or a repair article and sets out and fix it, but you can also just in the Place car and the workshop "Teleport" but makes the realism somewhat broken, fortunately you do not use this feature.
Mud: is simple genaial, have seen many games where the environment real playing changed, but just the change of the soil I have seen in the form nor in any game, you can really dig deep into the ground and it looks all semi Wechs from genuine, that's really well done
Conclusion:
It should still money in the game that you only have to earn a little money to be able to appropriate extensions / repairs buy / fuel can, if all is in vain, spoils the game a little to pass