From the north, he heard the steady drone of a Mercedes engine.
From outside on the tarmac came the roar of a Mercedes engine.
He heard the purr of the Mercedes engine as it came up behind him.
Far off toward the airdrome he heard the drone of warming Mercedes engines.
The new Mercedes engine has dominated practice speeds this month, but yet to prove reliability in race conditions.
The Mercedes engine provided 1,000 horsepower compared to 800 for most other engines here.
He finished eighth in the championship and became the best driver with a Mercedes engine for the second time.
Once more, above the roar of the Mercedes engine, came that sound of light drumming.
Again and again he pulled it, but the Mercedes engine wouldn't catch.
The Mercedes engine snorted, caught , and began to run.