I have a bad back and need a car that has plenty of head room (for a 6ft person) and a seat that adjusts. Ideally a car that you don't lower down into.

I currently have two cars - a 4x4 Isuzu that does 5000 miles a year as a towing vehicle and an Audi A3 that does 10-15,000 miles a year.

I'm assuming it is better to replace two cars with one. I need a car capable of towing 1.5 tonnes.