Never has there been a cooler sci-fi vehicle built on the chassis of a British Airways aircraft tug tractor. Following the success of Ridley Scott's 1979 hit Alien, the pressure was on James Cameron to come up with a suitably excellent sequel, so he set to work making a movie that would match its predecessor in terms of the awards and critical acclaim it received. Fundamental to the success of Aliens was the immersive world in which Cameron set the ongoing plight of Ellen Ripley, and a significant part of this appeal was the initiative put into designing the futuristic vehicles. The best of them, in our opinion, was the lowly M-577 armored personnel carrier. Fashioned using the aforementioned runway tug (appropriated during the early stages of filming) the outsized wheels and low-ridin' style gave the vehicle a look which even now, 25 years on, doesn't look dated. And if ever we were called upon to fight brutal extra-terrestrial life forms with a hankering for fresh, plump human flesh, we'd certainly feel safer in one of these bad boys.