The manufacturer I have found is Kenlowe they have been producing electric fans here in the U.K. for a long time. I have owned a number of high performance cars and still do and as far as I can remember not one had anything other than an electric fan. With the cost of fuel here in the U.K. at over $100 a tank I think the savings in fuel economy and the fact it will run a lot quieter has made me opt for the 16 inch fan produced by Kenlowe. As I have said in my younger days I built a hot Ford Anglia and bought a Kenlowe for it and was impressed by the build quality. If anyone is interested thier web site is www.kenlowe.com