Transporting a PC safely

[MegaMasher]

So I am off to uni in under a month and that involves a 2 hour car drive. Are there any tips on how to transport my PC so that nothing breaks. The boot of my car has a non slip mat so the PC wont move around. This is what I have

Do I need to do anything such as removing the GPU or what?

 

[MegaMasher]

Yeah I can transport it flat which wont be an issue, unfortunately I don't have the box that the case came with as I was given the case for free from a friend after he upgraded. I might be able to make a box out of other boxes though. Alternately I could just buy a ton of bubble wrap and pad it out loads to protect it