SCG Daily - A Deck is Like a Car: The Two Engines

Engines in Magic are relative to the cards around them. They are, at their best, pure synergy. The cards in an “Engine,” whether that is a combo, aggro, or control deck, work best when they're all in play. When you draw all of them, you almost always win. Your "engine" is running. Your "game" has begun.
Let's look at some of the great engines of the past, from the early simple engines (much like the automobile) to the horsepower we see today.