Pathetic AC in new Wagon R

Everything is so good about the car except AC. I have to sell my new wagon r only because it's ac was pathetic. When driver is never satisfied with the cooling capacity of ac then how cud we even think of rear passengers getting the cooling. Car's ac is not powerful enough to make the temperature even tolerable ..... So it's a bad buy considering the fact that in summers we need a good ac first and rest all comes later...