Elon Musk suggests the new Roadster could get a 'rocket' car upgrade package

Always a fan of theatrics, Elon Musk unveiled a surprise new Roadster at Tesla's Semi Truck event on Thursday night.  And though the unexpected rollout already has tech media talking, Musk threw another detail into the mix on Sunday, claiming on Twitter that the Roadster might (big emphasis on "might," here), as an upgrade option, have the limited ability to fly. SEE ALSO: Tesla unveils their latest roadster and it's beautiful As Musk teased on Twitter: "Not saying the next gen Roaster special ...