Martinson told us weight is why he selected the Honda K24A2 engine to power his monster Fiat. The 2.4-liter inline-four was treated to Manley Performance connecting rods, Arias pistons, upgraded head ...

No car has ever driven at higher altitude than this 992-generation Porsche 911 Carrera 4S with portal axles. On Saturday the Porsche crew, led by racing driver Romain Dumas, reached the highest peak ...

Several years ago 4x4 enthusiast interest in portal axles had been piqued, and rightly so. No other modification offers the same increase in ground clearance, lift, and the low gearing needed for ...

A prototype Unimog blends extreme off-road capability with unprecedented comfort as Mercedes-Benz marks eight decades of ...

The Mercedes-Benz Unimog has been around in one form or another since 1947. To celebrate its upcoming 80th anniversary, ...