Warp drives even if they one day are implemented, almost certainly won't allow FTL speeds, because it will break causation. According to Special Relativity, any

Warp drives even if they one day are implemented, almost certainly won't allow FTL speeds, because it will break causation. According to Special Relativity, any way of transmitting information faster than light is equivalent to passing it into the past in some frame of reference. Warping space-time doesn't really solve it, provided you plan to unwarp it back once you've reached your destination.