Still there was nothing in front, and finally he heard the engine sound change again.

He started 14th after a 10-place grid penalty for an engine change.

However, due to an engine change prior to qualifying, he had to start the race at the back of the field.

Consequently, Butch and his people did everything short of a full engine change.

His car also had an engine change Saturday after qualifying 20th for the race.

He was later given a further grid drop of ten places, for an engine change.

Successive engine changes increased the power by almost a factor of two.

However, the Pole was given a ten place grid drop for an engine change.

Therefore, the only difference between this model and its successor, at the time, was the engine change.

The aircraft was in quarantine at the time after an engine change.