We've asked Tesla if it can elaborate.

Provided this isn't just hyping up a more conventional package, it raises all kinds of questions. Is it street legal? (Probably not.) How many uses will you have? Can you refuel it yourself? And just how brutal would the G-force be when it kicks in? The one certainty is that the reborn Roadster represents Musk's definitive bid to outclass gas-powered cars "in every way" -- even if it means relying on some rocketry.