What are keyless entry and push-to-start on the Audi A6?

I've heard that the Audi A6 has keyless entry and push-to-start functionality, but I'm not sure exactly what this means. Can you provide more details on these features and how they work?

Keyless entry allows you to unlock and lock your car doors without ever having to take your key out of your pocket. You simply need to have the key fob on you and touch the handle to unlock the door. Push-to-start allows you to start your car with the push of a button instead of inserting a key into the ignition.

These features use advanced technology to make accessing and starting your car more convenient. As long as the key fob is within range, you can easily enter and start the car without fumbling for keys.