Installation stops with an error in file “X” ?

Most likely one or more of the installer files was corrupted during download. Try downloading again, or run Marcas Sync after the installation has finished so it can replace the damaged file(s).

I can´t install or run MARCAS ?

Make sure to run the Game executable with Windows admin rights; if the user is not a Windows administrator, just right-click on the icon and select “run as admin”.

I have invisible cars / really poor performance ?

You´re running way higher settings than your system can handle and GSC is struggling to cope. Try turning down graphical settings – opponent detail, shadows, texture detail and visible vehicles provide the bigger performance gains.