There is nothing inadequate about the cooling system atall. It does what it is supposed to very well. Granted the fan on and off temps may be higher than most people's liking, but that is a very easy fix. I had a fan relay go out on me once. Didn't notice until I got off the freeway. In all honesty the fan only does it's work at low speed, ie around town. On the freeway, the rush of air seems to keep things well within tolerance. If you live in a hot climate then yes you may want to upgrade the cooling systems to meet the rigors of your environment. But I would not trade my e-fans for a clutch driven finger chopper. If you are overly concerned, buy a new fan motor, a new relay, a new thermo ( one that you like) and a fan switch to come on when you like. Should outlast the car.

Will