The new Toyota Land Cruiser 250 goes head-to-head with the Defender, G-Class, and Grenadier in this ultimate off-road showdown. Top Gear tests each iconic 4x4 on rugged terrain, comparing capability, comfort, and modern design. The Land Cruiser offers legendary reliability and a hybrid powertrain, while the Defender blends luxury with toughness. The G-Class brings opulence and brute force, and the Grenadier channels old-school utility. Which vehicle truly dominates the adventure? Watch to find out.