Most comfortable small car for long drives?

What would you recommend as a small car that's both economical for day to day errands, and comfortable for longer distance driving at weekends?

I drive for an hour or so each way most weekends for my hobby, and since moving recently for work, my family are now a 3 hour drive away (I commute to work by train). I've had a 2007 plate Corsa for about 10 years. I've really enjoyed the car as a run-around, but I get very fatigued on longer journeys as it's a bit bumpy and rickety now, and the engine is quite loud on motorways.

Budget preferably under £15k. Just to note I'm not keen on VW Polo or Golf.

EDIT: thanks for all the suggestions everyone! Lots of ideas to research :)