Land Rover is prepping to release a new and improved version of the iconic Defender model, as we see the gradual disappearance of the 4×4 vehicle throughout time. The preview highlights a pair of concept models – both of which could possibly see production as soon as 2015. Some significant tech upgrades have been implemented into the rides, one of which is a uniquely crafted tire that features retractable spikes. The tire additions allow for extra traction when coming across adverse terrain. While the video may satiate your Land Rover obsession for the time being, only time will tell if either of the concept vehicles get to set their rubber to the road.