Watch as this Hennessey-modified Ford GT hits 423km/h at the Texas Mile in Beeville. It has a 5.4-litre Accufab Racing engine with two Precision turbochargers and runs on 117-octane fuel but is completely street-legal, with aircon, audio system, airbags and power windows.

Watch as this Hennessey-modified Ford GT hits 423km/h at the Texas Mile in Beeville. It has a 5.4-litre Accufab Racing engine with two Precision turbochargers and runs on 117-octane fuel but is completely street-legal, with aircon, audio system, airbags and power windows.