| Maximum speed in miles per hour | |
|---|---|
| Hennessey Venom GT | 270 |
| Bugatti Veyron Super Sport | 268 |
| Koenigsegg Agera R | 260 |
| SSC Ultimate Aero | 257 |
| 9ff GT9-R | 257 |
| Koenigsegg CCR | 250 |
| Saleen S7 Twin-Turbo | 248 |
| McLaren F1 | 240 |
| Zenvo ST1 | 233 |
| Pagani Huayra | 230 |
Sources:
auto.howstuffworks.com

Even the slowest of these cars drastically exceeds the legal speed on any road of which I am aware. Specifically, the Hennessey Venom GT, produced in Sealy, Texas, had to use the shuttle landing strip at NASA in order to test it's top speed.