BN's venerable E units were retired in 1992. Metra replaced them with EMD's F40PHM-2's, road numbers 185-214, although about half of these units are assigned elsewhere on Metra's system. After retirement from Metra, some of them were sold off to MARC's commuter system, based in our nation's capital, but I'd be suprised if they'd still be in service now.
Speaking of E units, does anyone know the heritage of BN E1? Last time I saw it was last year at the Illinois Railway Museum, and it was in the dark green and cream colors (similar to the SD70MACS as delivered to BN). Did this unit ever operate for Metra?
--Dorian--