Ineos Grenadier's bare bones shown off

Ineos has previewed its upcoming Grenadier 4x4 by releasing a picture of its all new ladder-frame chassis.

The pic, released overnight, is accompanied by the first in a series of short behind-the-scene films.

Ruling out a car-like monocoque platform, Ineos uses the video to explain it wanted to follow the classic 4x4 blueprint, hence a strong and rugged ladder frame was developed.

The body-on-chassis approach also helps engineers adapt and modify the upcoming Grenadier with extra underbody armour and extra equipment like winches.

Instead of fully independent suspension, solid beam front and rear axles have been developed for the Grenadier because engineers deemed them essential on grounds of toughness. Ineos teamed up with Italian tractor builder Carraro to leverage its experience in building durable off-road vehicles.

The result, Ineos claims, is a 'no compromise foundation for its ultimate 4x4.'

It's perhaps no surprise that the Grenadier is being designed and engineered to be tough.

Ineos' chemical industry based owner, billionaire Jim Ratcliffe, says the aspiration from day one has been for the Grenadier to be a direct replacement for the previous long-lived Land Rover Defender.

Under the bonnet, Ineos has already confirmed the Grenadier will not be short of power as it will lift its 3.0-litre inline six-cylinder turbo petrol and diesel engines from the latest BMW range.

Set to be manufactured in a new factory at Bridgend in Wales, Ineos says the Grenadier is being developed and engineered in co-operation with Magner Steyr – the same company that currently builds the Jaguar I-PACE, Mercedes G-Class and the Toyota GR Supra.

The Ineos Grenadier is due on sale in 2021, but there's no word yet on pricing or whether the all-new hard-core off-roader is destined to head Down Under.