It is 12.5% higher for a taxi company as stated in the article ( 25% Front wheels, 0% rear wheels, while break wear is 50% lower) and there was no difference measured for moderately driven vehicles.
Edit: This also strongly suggests it is due to acceleration as the back wheels also have to carry the weight and the front wheels get the additional wear from the acceleration)
Combine that with tail pipe/energy emissions (which only get better as more and more of our energy mix is renewable) and the picture is quite clear.
I repeat myself here: Yes I agree cars are bad! Reasons stated above. But if somebody insists on buying a new car it is better for the climate and the environment if he gets an electric one.
For the record: Nope do not have a car myself and I am well of legal age to get one.