I currently own a diesel 2013 Audi Avant A6. It's a 2.0 TDI 177PS for towing our relatively small Eriba Troll (1000kg). The A6 is used mainly for long trips so it only averages about 5000 miles a year. I am pleased with the economy, the looks and the internal space it affords. However, I would like to change the car at some point in the near future and wonder what I should get, bearing in mind all the bad press about oil burners. I like estates but not keen on the larger SUV type vehicles. I fear petrol cars for towing may not live up to the power and torque of diesel units. Also many of the manufacturers are using smaller engines. My budget for a new or second hand replacement is about £30,000.