On a small scale, this is what custom car builders/customizers have been doing for some time. Boyd Coddington is one name that comes to mind right away. Pick up any issue of Rod & Custom, Street Rodder, etc., and you will see features on people just like this, building cars from their component pieces.
This is not a far-fetched idea at all.
Sounds similar to what DeLorean did in Ireland 20+ years ago. Too bad he got busted for drugs.