I am looking to replace my 2007 Volkswagen Polo with a three year old much more economical small car. It must have air conditioning, five doors and take adults in back. I'm looking at the Toyota Aygo and Volkswagen Up. I travel 10,000 miles a year, mostly on country roads but I need reliability on motorway. My budget is under £7000. What would you recommend as best long term buy as we plan to run the car into the ground?