Watch Hennessey-tuned Cadillac CTS-V run over 220 mph on a Texas road

Texas holds the excellent honor of playing host to the road with the highest speed limit in the US. 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 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-liter V8 engine good for 1,226 horsepower and 1,109 pound-feet of torque. Hennessey paired that maniacal mill with a carbon fiber 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. Check it out in action below.