The 2018 Mercedes-Benz X-Class may claim to be the most premium pick-up on the planet, but that doesn’t mean hard-working tradies who want a tray-back version will miss out.The company has confirmed it will offer a cab-chassis tray-back/table-top version of the all-new X-Class in Australia from launch, giving Mercedes-Benz’s local Vans division a line-up of 18 different versions by the time the vehicle hits showrooms in April next year.The company is yet to reveal this work-oriented version of its new ute, but we’ve taken the liberty to attempt to show you what the cab-chassis version will look like when it arrives here (above).The work-focused cab-chassis versions will be offered on two of the three trim levels – the entry-level Pure and mid-grade Progressive – but the high-end Power version won’t have the option of a drop-side tray.Above: the X-Class has so far been shown in tubbed pick-up form only.Mercedes-Benz Australia has confirmed the cab-chassis variants will carry over the same five-link coil-spring rear suspension as the pick-up models. That separates the Benz version even further from its sibling model, the Nissan Navara RX dual-cab-chassis model, which runs a leaf-spring rear axle.That Navara model has a claimed maximum payload about 100 kilograms higher than its respective coil-sprung companions, so it remains to be seen as to what rating the cab-chassis X-Class has. The regular ute range is said to be able to manage up to 1092kg.The Pure and Progressive models that will have the option of the cab-chassis body-style will also have a choice of multiple drivetrains.The entry-level Pure version can be had with one of two four-cylinder turbo diesel drivetrains, manual or automatic transmissions, and 2WD or 4WD, while the Progressive will be available with a four-cylinder with manual/auto and 2WD/4WD options, or a V6 diesel with permanent four-wheel-drive and an automatic gearbox.MORE: 2018 Mercedes-Benz X-Class ride-along reviewMORE: X-Class newsMORE: Everything Mercedes-Benz