I kinda messed up with my file by replacing it with a wrong texture in Photoshop. Basically, I need someone to upload the van_c.dds file (found in BeamNG\BeamNG-DRIVE-0.3\vehicles\van) somewhere so I can download it - I would have made a back up if I knew I would change it, but it was a complete accident. Thanks in advance!
For the future, if you run the updater then force the update, it will reset any modified files to the original state.
Cheers for the tip, I should have realised that before. Nevermind, somebody will probably take this as an example in future.