I worked at Argonne National Laboratory for 21 years as a fleet mechanic. The last bunch of years I was there they opened the Transportation Technology R&D Center
Argonne Transportation Technology R&D Center - Lithium-ion Batteries, Hybrid Vehicles, Alternative Fuels, Engines, Fuel Cells, PSAT, GREET, TRACC,PHEV, HEV.
In the mid eighties, when the TT R&d Center was first being established, we had side by side gasoline VS CNG, E85, & M85 test fleets. M85 was some nasty stuff.
I got a job offer for more $$ doing fleet maintenance with a major utility and left there in 2001.
Click the link and take a look around. Some pretty amazing science going on there.