This week the Solar Impulse made history by becoming the first sun-powered airplane to cross the Atlantic Ocean. Meanwhile, a team of Swiss students built an all-electric race car that smashed an acceleration record by going from 0-60 mph in 1.5 seconds flat. Sweden rolled out one of the world's first electric highways, while two ex-Google employees are developing self-driving big rigs that slash emissions. And we showcased the Super 73 -- a bike/motorcycle hybrid that'll add some serious kick to your morning commute.