Sam and Alex sit in the back of the van as they speed down the highway.

The car went over a hill and speeded down to the bottom.

As we sped down the A6, she talked my ear off.

Why can you slow up but not speed down?

He sped down the staircase and out into the garden.

She herself sped down the hall and up the stairs.

They leave the restaurant and get into separate cars, before speeding down the highway toward each other.

He sped down the driveway and turned into the street.

Letting go, she speeds down the rest of the stairs.

He sped down the hall, and was surprised to find Juan behind him.