A 3D-printed autonomous car, and more in the week that was

That's the idea behind Local Motors' latest vehicle, which features a 3D-printed body, a windshield video screen and no steering wheel. Meanwhile, OX launched the world's first all-terrain flat-pack truck, which can be quickly shipped anywhere in the world. Cannae Corporation announced plans to test an "impossible" zero-exhaust microwave thruster that could revolutionize space travel. And Electra Meccanica launched SOLO, an affordable three-wheeled electric vehicle for one. In energy news, this week Sonos Motors announced plans to debut a solar-powered car within two years, and Soel Yachts unveiled a sun-powered motorboat that glides through the water without making a sound.