It's best to bump-start a car at the top of a hill or slope and use the downward gradient to build momentum. Then again, having a friend (or two) to push the vehicle could also work.

The keyless car is a marvel of engineering. But how is it that they can start even when the battery in your key fob goes dead? The answer lies in science.

To start the engine, most cars with smart keys have a push button that fires up the engine before you even get in the car.