Their first two models offer buyers a 6x4 chassis or the ultimate 6x6 version.

Undoubtedly, the ultimate incarnation of the Toyota Land Cruiser, the 6x6 version, will not only allow customers to tackle off-road excursions with confidence, but the GVM (gross vehicle mass) increases to a substantial 6 050 kg. That is a significant 2 850 kg up on that of the standard vehicle.

This is achieved by installing a third axle at the rear of the Land Cruiser’s chassis. It is important to note that the original chassis remains intact during the extension process, with the new addition to the chassis being expertly welded onto the existing ladder frame.

The additional axle as well as the existing rear axle are upgraded, offering more load carrying ability. This set-up, in combination with three differential locks, allow for the ultimate in off-road prowess. The rear axles are track-corrected, meaning they are slightly wider allowing the tyres to run in line with those fitted to the front axle.

Whereas other existing 6x6 systems employ a complex array of drive shafts and gearboxes, the Ulterio Motiv design features a straight-through differential drive from the second to the third axle in combination with a slipper-type clutch to activate the full 6x6 drive only when needed.

Owing to the homologated load-carrying ability of the 6x6, it requires a code C1 (previous code 10) licence to operate the vehicle on public roads.

Visually, the 6x4 version of the Land Cruiser looks similar to the 6x6 version. The only difference is that the rear axle, in this case, is not powered by the engine. However, as it is still based on the standard Toyota product, the 4x4 system is still in place with the third axle in this case only assisting in the load carrying capacity – rated at a slightly lower but still substantial 5 500 kg GVM.

The set-up of the bogey system on the rear axles ensures that the driven axle always carries 60% of the load to improve traction. In terms of safety, both the 6x4 and 6x6 are equipped with a braking system on the third axle as well.

Both offerings will be available, as an option, with unique 35-inch steel wheels. These will not only improve ground clearance but will add to the level of grip in off-road conditions when the appropriate tyres are fitted. As with the 6x6 model, the new axles on the 6x4 are also track-corrected.

Should a customer own a second-hand Land Cruiser 79 from the past couple of years, either in straight six, V8 or the newly launched four-cylinder automatic models, Ulterio Motiv is able to convert them into 6x4 or 6x6 versions.

• · Cost and build time:

6x4 Toyota Land Cruiser 79 conversion (R389,950 ex VAT).

6x6 Toyota Land Cruiser 79 conversion (R895,000 ex VAT).

The cost excludes the supply of the base vehicle, drop-side load bin, aftermarket wheels and tyres but includes Ironman 4x4 ™ front suspension upgrade, or similar.

Ulterio Motiv’s 6x4 conversion, as well as the 6x6 of the Toyota Land Cruiser 79 bakkie (single and double cab) requires a project build time of three months – subject to prior sales.