I have a 2014 mazda6 which has only done 43k miles and serviced every year, had a sudden loss of power while driving down the motorway, no warning lights on dash, RAC could not find fault and had two home. Now told engine is no good and turbo faulty, can't believe a car of low miles can end up useless and not fit for purpose. Any thought people?

 

Petrol or diesel engine?