Thanks for your question. For carrying dogs, a large estate car is perfect, particularly because the lip of the boot is lower to the ground. A Skoda Superb would work well, as these have a cargo area which is near enough level to the boot lip, and there's ample room back there. What's more, Skoda produces quite a few official accessories aimed at dog owners. If you can, opt for the 2015-on model - just bear in mind it'd need to be towards the top end of your budget to get an example with more reasonable mileage on the clock.