A ship using this methodology could reach its destination faster than a light beam restricted to travelling outside the warp bubble. Some theoretical calculations indicate that it may be possible to go the equivalent of 100 times the speed of light in a space warp scenario.
In 1994 Miguel Alcubierre came up with the Space Warp concept, in which he proposed a method in theory to cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. A ship would ride inside this region characterized as a local space warp bubble of flat space. Since the ship is not moving within this bubble, it is just carried along, as the region itself moves. Conventional relativistic effects are not violated since it is just the contraction of the metric of space in front of it and the expansion and return to normal space behind the object.