She's pretty sure the Merc is alone, that there aren't any backup cars.

Martin knew his backup car wouldn't be good enough.

Without a backup car, the team was forced to make repairs.

De Ferran's team managed to prepare the backup car for the second start.

Later in the day, he wrecked his backup car in turn 2 during a practice run.

The backup car peeled out and slid sideways across the avenue.

Usually, drivers go to a backup car, then drop to the rear of the field, after they are involved in an accident before the race.

Farina withdrew after Andrews was killed, with no backup car to use.

This wasn't a primary car; maybe not even a backup car.

He crashed during practice and was forced into his backup car for the race.