This leviathan is the new 705bhp Hennessey Goliath 6x6

Ford vs Chevrolet. It’s as tribal as motoring rivalries get – especially when it comes to pick-up trucks. In fact, it’s a civil war.

Over to Texas and the stable of Hennessey Performance to even up the stakes. Having already forged a tuned, six-wheeled version of the Ford Raptor (neatly titled VelociRaptor)  John Hennessey and co. have turned their super-unleaded intentions to the latest Chevrolet Silverado Trail Boss Z71.

A superb car name already, but even that’s been enhanced. Now with six-wheel drive, a supercharged V8 and eight-inch lift kit, you’re looking at the Goliath 6x6. There’s a new mega-truck in town, folks.

John explains “As with anything from Hennessey, the first order of business is adding more power.” And then adding a a dollop more, until there’s more power than the wheels know what to do with. So you add more wheels too, it appears. Cripes.

“These are very exclusive and unique vehicles that make a huge statement anywhere our clients go – whether it’s Rodeo Drive or the sand dunes of the Sahara Desert”, says Hennessey. Wherever they go, and whether or not they need roads, it won’t be taking them long to get there. Here’s why.

Bolted to the 6.2-litre factory V8 motor is a 2.9-litre supercharger wound up to 7psi of boost. Breathing out through a stainless steel sports exhaust, the HPE700 package develops a colossal 705bhp and 675lb ft. Hennessey predicts 0-60mph will happen “in the mid-four second range.” Presumably on any terrain yet charted by mankind.

Thrown in are 37-inch off-road tyres by BFGoodrich, LED lights, LARGE-font Hennessey graphics (honestly, what else could this thing be?) and, worryingly, a rollbar upgrade. Keep it shiny side up and Hennessey will include a 36,000-mile, three-year warranty. Yep, this 705bhp piece of pseudo-military chic ought to outlast your iPhone.

Now, the price for such a behemoth is not insubstantial: it’s $375,000. Should you wish to import one, you’re unlikely to get much change from £285,000 before you’ve imported it. Then again, no-one’s quite sure if this will physically fit in Britain. Goliath by name and nature, make no mistake.

Only 24 will be made, but should you fancy one-upping your 23 fellow owners, Hennessey says it will offer an 808bhp engine upgrade. Eight-hundred horsepower, and a truck bed that could host Olympic diving. Cars come no more absurd. Two car garage with a Venom F5, anyone?