There was another E blend test I think in Sweden or Finland that used a mixed bag of cars, but their testing wasn't as scientific as Uof ND.
Missed that the FFV Impala was the only one that didn't loose MPG with E10, thank's for pointing it out, I'll have to try E0 in it sometime. But with being wife car most numbers are of limited value. With her previous car (2002 FFV Suburban) over 1,000s of miles she average 15 mpg with E10, 12.5 or 13 with E85, I think it was 18% loss in FE for something around 25% loss in energy (data on Fuelly).
Edit: E10 vs E30 testing
http://www.google.com/url?sa=t&rct=j...n-2bSkJ4A24MMg