How would a car customisation business fair in the current economic climate?

I have enough funding to buy enough parts and equipment to customise 4 cars. I also need to rent a place big enough to fit two cars at a time. Does anyone know a place such as that? And also, on the subject of 'how will it fair?', I will take requests on what needs to be done on the car. Thanks for any help given.
How would a car customisation business fair in the current economic climate?
you can watch the market of different countries

and ask you consumers