This is my first time doing anything related to making moulds and finer glass panels but like everything else I want a steep learning curve and start big.

Or are you saying you want to make a kit car body that is just one whole piece, kind of like the body of a nascar car (so you'd have to climb in through the windows). If this is the case then you could do it with a multiple piece mold (very multiple!) and just do the bonnet separate.