I want to build a car from scratch and market it.

[rogerowen]

Because I'm completely barking I want to design and build a car and offer it as a kit or fully built. The mechanical donor I'm thinking of does not have a chassis, so I would design and build a space frame. So, it probably could not be registered under the name of the donor. Does this mean that a prototype will need to be crash tested and is this mighty expensive? Anyone?

[RKDE]

You need to go through the BIVA on each and every vehicle. You can download and read the BIVA from the .gov website

[Steffan]

I currently complete about 5 kit cars a year mostly new registrations because I am retired and need no money from what is my hobby. Nor do I make any I do not even break even. Building a complete new car is no small achievement. I recommend you to consider the work involved and make enquiries with any one of a number Universities who offer vehicle construction courses in the UK. I wish you every success but you need accurate, informed, considered, advice on a huge range of aspects of vehicle construction and that seems to me to be the first essential step. The very best of luck to you.

[slipstream 1985]

buy knackered engined rx8s get then rebuilt and do your own bodywork for them

[smiffy180]

Great lurking