Amazing car and I'd to have one, BUT, its a tuner car. A car based on something else with a motor show-horned into it. Nevwrming the 5 or 29 made, Hennessey is a hot rodder, a good one, but, still, not production car.
Plus, I didn't see a Hennessey yesterday, but I did see a Veyron, tho it was the weak base model.
the bugatti is nice, very nice and very refined. The Venom looks nice, is blazing fast and likely no where near as refined.
The bugatti runs on tires specifically made for it and only it. They cost north of 30k USD for a set and do not last long. I've not heard of the venom's tire setup but suspect they run on something pretty high end but not nearly the same price point.
I would own both if I could, though I suspect if I could own the first, I would be able to own the second. I would say the converse of that is not necessarily true. I doubt most venom owners could afford a veyron. That said I really wish I had either problem