1.   The train runs at fantastic speeds.

2.   The raid was all over in three minutes, for the men scrambled back into the car and it moved off at a fantastic speed.

3.   Created by collisions of subatomic particles at fantastic speeds, the tau lepton blazes into and out of existence in less than one-trillionth of a second.

4.   Ultrashort carbon nanotubes could create machines that would reach fantastic speeds, the scientists said.