GPS for trucks/cars/tree harvesters

[S-eler]

Is your feature request related to a problem? Please describe.
Lack of gps for man 4x4, which i sometimes use for field work, and also for clear autodrive network building.

also gudiance steering would be gladly welcome for tree harvester, to have the ability to drive with it „like on rails”, making clear passes thru the forest

Describe the solution you'd like
Ability to normaly use guidance steering like for tractors

[jrogers-git]

I am interested in this also and was able to get this working in a fork of this. I put in a pull request to hopefully get this merged into the main project here:

#361

[jlcd]

Up.
Also interested.

I am interested in this also and was able to get this working in a fork of this. I put in a pull request to hopefully get this merged into the main project here:

#361

Used this to make it work for my game, thanks @jrogers-git