There are sites that are easy, and then there are sites that are boggy, muddy, steep, swampy, treacherous or covered in snow and ice. For the former, 4WD and diff-locks are usually enough. For the later, you may need a Fat Truck.
We first reported on the Fat Truck 2.8C back in 2019. Now the company has come out with an upgraded amphibious version with pickup truck capabilities. The new Fat Truck pickup version 2.8P from the Canadian firm Zeal Motor is designed to transport people, material and tools to the jobsite through just about any conditions.