Make / Model Search

GoAuto glossary


Technically, it should read cD, and it’s the scientific code for “co-efficient of drag”, or the resistance of an object moving through the air.

The lower the figure (anything under 0.30 is ultra-low) the more easily it cuts through the air without causing undue drag or resistance.

This will help fuel economy on the highway because the engine works less hard to overcome air resistance.

Glossary A to Z

Stuck on a word or some strange terminology?

Select the word in the list to become an automotive guru for your friends.

Select a term or phrase

Catch up on all of the latest industry news with this week's edition of GoAutoNews
Click here