I recently used a car supermarket to purchase a second car. I used this company because I thought they were reputable and on their website stated their cars were comprehensively checked. However upon driving home after a few miles there were issues electrically, no power or acceleration past 3000 revs and the brakes didn't work!

Any advice on how to proceed? The car will be going back to the car supermarket, but surely there are issues here for the fact they've knowing not checked the car to see if its safe before selling?