It is not a kit car. It is a production car at the same level as a Alpina, RUF or Brabus. Plus, I think Hennessey don't even take the Lotus Chassis. Or they take it and change it completely. (Not sure about this).
So it is a production car.
Also, it is funny how they didn't go for the 0-300-0 like Koenigsegg, knowing they couldn't beat them.