Feel free, might knock some sense into you. Considering I actually work on OEM parts in the auto industry, and what companies use as requirements if they are not pushed by an OEM. It's the cheapest/least testing possible. On the topic of radiators and fans, it needs to be data driven for comparison. Higher efficiency by what? We honestly don't know. Nobody publishes how many BTUs/HR a radiator can dissipate in a standard condition, on an objective measurement, there is no information. Surface area? For all I know, it could be marketing.
The shroud design has a real big effect on the effectiveness of a fan. Nobody making them out of sheet aluminum is testing or optimizing for efficiency, but they'll charge you the money.
I see a lot of cars with high end parts that just plain don't work in the real world. The Woodward Dream Cruise shows me this every year. I was at Roadkill nights waiting to get in several years ago and even mopar people "Why don't you shut your car off? it's going to overheat!", While it's running cool enough the fan is cycling on and off and my alternator can actually keep up. Without anything expensive.
