Watch Hennessey-tuned Cadillac CTS-V run over 354 km/h on a Texas road

Texas holds the excellent honor of playing host to the road with the highest speed limit in the USA. It seems no coincidence, then, that the speed-hungry minds at Hennessey Performance call the Lone Star State home as well. Hennessey recently turned its attention to the freshly opened toll road SH130 for a quick sprint, and with the help of the Texas Departments of Transportation and Public Safety, driver Brian Smith ran the VR1200 all the way to 220.5 mph (354.8 km/h) before running out of road. That's right, the wicked, much-modified Cadillac CTS-V Coupe actually had more left in its top end.

As you may recall, the VR1200 gets its grunt from a twin-turbocharged 7.0-litre V8 engine good for 1,226 horsepower and 1,109 pound-feet of torque! Hennessey paired that maniacal mill with a carbon fibre widebody kit and a set of carbon ceramic brakes among other goodies, and the team says the VR1200 is good for a top speed of 242 mph (389 km/h).

Click here to catch the high-speed action on video.