Their automobiles, too, had seen better days, belching black exhaust during the 30-car procession to the graveyard.

I waited until the dust and dense black exhaust fumes drifted out of my headlight beams, then began the return trip to Prague.

The early D10s came with a single big black exhaust stack up front.

As the bus pulled away, sending out puffs of black exhaust behind it, I gazed across the street.

The 32 rockets can be identified by the thick black exhaust they leave behind.

The Chevy started up like a cannon going off, shooting black exhaust.

Roaring and spluttering, sending up black exhaust from its stack, the truck started from the lot, onto the street.

A rusty old American car lurches past, belching black exhaust.

Continuous black exhaust from the stack when under a constant load is also an indication that all the fuel is not being burned.

Its transmission engaged, black exhaust expelled, the tracks of both sides shrieked over damaged wheels.