From Space.com:
CAPE CANAVERAL, Fla. — SpaceX is poised to make history by launching the world's fourth electric car into space.
Years in the making, the commercial spaceflight company is preparing to launch its first Falcon Heavy rocket, which as its name implies, is a heavy-lift booster built from a core stage and two of SpaceX's Falcon 9 recoverable rockets. According to SpaceX, when the Falcon Heavy lifts off, it will be "the most powerful operational rocket in the world by a factor of two."
Only NASA's Saturn V rocket, which carried six crews — and three electric cars — to the moon almost 50 years ago, could deliver more payload to orbit. (The space shuttle had more thrust at launch than the Falcon Heavy, but had a lower payload capacity.) [Watch SpaceX Launch Falcon Heavy at 1:30 pm ET]