And she wouldn't know anything about the internal combustion engine.

Combustion engines again, but that type was part of her past.

Only on longer trips would the combustion engine be used.

He'd been told to listen for the sound of an internal combustion engine.

In the early part of this century, the economic force was the internal combustion engine.

For now, however, the internal combustion engine will continue to rule.

Or does one start an internal combustion engine at full speed?

But right now there is nothing that comes close to the internal combustion engine, even with all of its problems.

The first internal combustion engines must have looked like this, to the people who'd never seen one before.

Generally, they are used to cool an internal combustion engine.

Water, of course, does not work too well as a fuel in an internal combustion engine.

On that note: Clearly, the internal combustion engine is going to be around for a while.

Not that the ancient combustion engines would work now anyway.

All internal combustion engines have the potential to produce it.

For the most part, cars still use petrol and an internal combustion engine.

On the open road, the primary power source is the internal combustion engine.

It is impossible to drive the vehicle without combustion engine.

What's also clear is that traditional internal combustion engines still have a lot of life left in them.

Without the hum of a combustion engine, it didn't feel right.

In the near future we'll introduce the internal combustion engine.

This was the first internal combustion engine to be produced in numbers.

In addition, the car is fitted with a small “range-extending” combustion engine.

Or at least since the invention of the internal combustion engine.

Then he called for elimination of the internal combustion engine.

By 1850, the internal combustion engine existed that is still in use today.