Laurel Hill tunnel test facility entrance

The rolling hills of Pennsylvania in the Northern United States hold a mysterious secret buried deep under Laurel Ridge. This highly classified test site is re-writing the textbooks on aerodynamic development. The construction of the site took place in 2003 and rumours of existence first surfaced a year later.


Rumours of an abandoned highway tunnel being used by a racing team were the talk of the industry, but details were sketchy at best. Eventually Racecar Engineering managed to get hold of images of the tunnel in use which showed some intriguing modifications, including a large metal structure that has been added to the eastern end of the tunnel.