This week we built a mock-up of the driver's cabin. Testing how easy it is for the driver to get in and out, determine the steering wheel's position, check the visibility, and get a better visual understanding to make the doors' final choice and their dimensions. You can't get this from CAD alone. 

So far, we are very pleased with the results, some changes need to be done here and there, but overall, the future driver of the CF1 will get quite a spacy workspace, easy to walk around and operate.