I think the issue you will have is meeting all the Iva requirements around the radii of items especially with the style of car you are think of.
But there are some bits you should read first
http://www.autobionics.co.uk/IVA.html
Just read some of the things this failed on to,give you an idea
http://beauford-project.jimdo.com/th...iary/iva-test/
You can build a car to met the requirements but it will be difficult...there are stories of building a car to pas the Iva then changing it after to suit what you want