Q. Which car should I choose from Maruti Swift and I20 in petrol version. My need is better average, and best service after sales with value for money between the two.

A start-stop system turns your engine off when you are stationary and saves you fuel in the process. Here's more on how you can improve fuel economy by using start stop systems

When you are stationary, you don't need the engine running all the time. This and more will help you save fuel...

Clutch action can save you fuel. How? Find out

Clean aero is as important for fuel efficiency as it is for performance in a straight line. We tell you more about how it helps in the former case

If you are looking for good economy, buying the right car is the most important decision you can take