The TVR Speed 12 weighed less than all of those. Unfortunately the road version was scrapped because of being too fast. There is a rumor they are going to make a new one to face Bugatti, but they already had a design with 1000bhp and 2200 lbs, so I don't doubt they can do it.
The Speed 12 was hype, it never proved anything. Considering it was just a tube framed race car, of course it'd make a horrible road car. TVR's lower cars were well known to be not all that drivable (by most people, but even excellent drivers had issues keeping them in line) when pushed hard, so adding much more power obviously was not going to make them any better, especially with the insistence to not use any tech aids.
As for being too fast, well consider it was said by the guy running the company at the time, who had a penchant for saying stuff like that. Granted, I'm sure it was pretty much undrivable on the street, but that's as much the fault of TVR's development as it is the horsepower and weight. There's cars with twice as much power as the Speed 12 had that are more streetable than it.
Fact is, with 800+ horsepower, regardless of how much the car weighs, you have to have some manner of tech aids to make it do anything but go in a straight line well.
Also, the Speed 12 wasn't what you'd call reliable. The race versions had a habit of breaking down, and they were detuned compared to the road car.
Its cool that TVR would consider making such a car though, but they're not great at developing cars, and so all that potential gets wasted.
It did make a great sound though. When the rev limiter was pegged it actually sounded like a whole hive of pissed off bees.
The tire thing isn't true. No car manufacturer can specify the tire that you put onto the car. For the Veyron to be sold in the US, it must meet federal guidelines, therefore Bugatti can not mandate you use their brand tire. As I've posted before, in a similar thread, the other cars that have top speeds near the Veyron use normal tires.
An F1 car, running far softer rubber, (and with downforce, far greater weight as well) have tires that last longer than 37 miles.
People get stupid when it comes to exotics, like the Ferrari Enzo oil change. As long as you meet the viscosity and change intervals, Ferrari does not have the ability to deny warranty coverage.
As pointed out, the tire claim is for it at such high speeds. F1 cars don't run anywhere near that speed.
As for downforce, even when its making it 3 times its weight, an F1 car still only weighs about as much as a Veyron does when its standing still. The Veyron makes its own downforce as well, and in handling mode, it probably weighs a good 5000 pounds at a decent speed. F1 cars average speeds that put them about twice their weight, which would put them at roughly 2400-2800 pounds. Of course, F1 tires also only need to last roughly 200 miles, and have more rubber on them (which gets sloughed off through the course of a race). Granted F1 tires probably undergo other forms of stress that the Veyron's tires can't handle, but they're specifically designed to, just like the Veyron's is meant to handle it. These other cars don't exactly use the same tires on your typical car either. If I'm not mistaken they all use high performance tires that are actually developed similarly to the Veyron's. I think Michelin makes the tires for most of these companies too.
The problem is.. Michelin is the only company that makes tires in the correct size for the Veyron. So yeah, you can use whatever tires you like, but there is only 1 option at the moment
Exactly. Sure you could possibly use another wheel/tire combo, but then performance of the car would likely change and I don't see how Bugatti could be held liable if for any problems should you try top speed testing.