He trained his reflexes until he could move with superspeed to dodge every punch during sparring.

The superspeed prototype train shattered travel time records on its maiden run.

Scientists testing the new propulsion system recorded multiple superspeeds during the trial.

The drivers prepared for the race at the superspeedway, where sustained high speeds and long straightaways demanded precise aerodynamics.

Many teams test their cars at superspeedways to collect aerodynamic data.

The superspeedy courier delivered the package before lunch, much to our surprise.