What car do you recommend for £20k that's quiet and reliable?

I'm looking for recommendations for a used saloon or estate. I have a budget of around £20k. Ideally the car would be a maximum of 6 years old. The key parameters I am trying to fill are cabin quietness/comfort...

What car would you recommend for both short trips and very long journeys?

I have just started a new job which will involve driving long distances at periods across all kinds of roads including motorways and single lane roads. I will be using my own vehicle, but when I am not...