"Several of Jaguar's rivals are already looking at various alternative powertrain technologies to use in the next generations of their high-performance vehicles, most notably Porsche's 918, Mercedes' SLS E-cell and BMW's i8, " observed IHS Global Insight analyst Ian Fletcher in a recent note.

BBC: Jaguar reveals 'E-type successor'

In contrast, NASA's SLS is a heavy-lift rocket designed to lift a 130-ton payload into space.

WSJ: NASA's SLS Is a Key to Deep Space ?? Letters to the Editor

The Space Launch System, or SLS for short, is NASA's go-to rocket to carry NASA's planned Orion capsule and possibly other future payloads beyond low-Earth orbit.

MSN: Giant deep-space rocket passes key test - Technology & science - Space - Space.com | NBC News