New Ford F-150 Raptor R

 The new Ford F-150 Raptor R is the most extreme version of the brand's best-selling pick up yet.

It's the latest entry into the hardcore Raptor line-up of sporting off-roaders and is much quicker, larger and more potent than the hot pick-up that Ford sells in Europe, the Ford Ranger Raptor.

That's chiefly because, rather than a 3.5-litre V6 pumping out 284bhp and 362lb ft, the fastest F-150 takes its reserves from a variant of the 5.2-litre supercharged V8 most recently used for the Mustang Shelby GT500 - one of the most potent Ford road cars of all time.

The supercharger has been tuned to boost low-end and mid-range torque, while the new stainless steel exhaust manifolds, deeper oil pan and bespoke oil cooler and filter mean the Raptor R can keep cool in high temperatures and under extreme load.

But in keeping with the Raptor nameplate's off-road focus, it's the fact that the R will be able to maintain high speeds across challenging terrain that really marks it out from other super-SUVs.

It's said to be modelled on the brutish, stripped-back 4x4s that race in California's formidable Baja 1000 endurance series. "F-150 Raptor is about more than going fast: it must conquer brutal off-road environments," Ford said.

So in addition to the larger motor, the R also brings a raft of wide-reaching chassis modifications aimed at boosting off-road performance and durability.

Meanwhile, the trailing arms for the five-link rear suspension have been extended to "better maintain axle positions on rough terrain", while the 24in springs and Fox live-valve shocks are tuned for improved ride quality and roll control.

The front axle has 13in of suspension travel, while the rear has a massive 14.1in - and 37in tyres are standard fitment. Meanwhile, the 10-speed automatic gearbox has been retuned to better exploit the huge loads running through it, and the torque converter is similarly modified for improved torque transfer and "a smoother powertrain feel".