Everything is biggest in Texas, or so the saying goes, and recently the Lone Star State became the state with the country’s highest legal speed limit, 85 MPH. Of course people are going to push that limit all they can, and so Texas saw fit to install a state-of-the-art toll system that can track cars even at the highest of speeds.

Such a system warrants extensive testing though, and despite having taken 1,200 horsepower Cadillac to over 220 MPH earlier this year, Hennessey Performance Engineering was asked to come back and test the toll system again… this time though, with its 2014 Corvette HPE600 .

Hennessey was among the first aftermarket shops to get their hands on the 2014 Corvette Stingray, and they wasted no time in adding a host of upgrades to the already-potent Chevy. Among the upgrades are high-flow cylinder heads, long tube headers, a custom HPE camshaft, and of course new tuning software to take advantage of the added performance potential.

Getting the Texas Highway Patrol to shut down part of the new, 85 MPH section of the Guard Parkway toll road was the next step. This gave John Hennessey himself ample room to get the 2014 Corvette up to speed, though a small nitrous kit was used to help the ‘Vette get over the 200 mile an hour hump. Sure, it seems like it might be a questionable use of taxpayer funding, shutting down the road for a private stunt like this – but you won’t hear us complaining.