Do Leons get the 'aux heater' that is talked about there?
I think before long all diesel cars will come with separate aux heaters, which cars already have in certain vlcold countries
The problem is as cars get more efficient and the strive for better mpg and meeting ever tightening European emissions regulation, the less wasted heat from the engine there is for the passenger compartment
All that heat is just wasted energy, less heat = more efficiency, but cold occupants