The Evolution Series ke mokoloko oa literene tsa diesel tse hahiloeng ke GE Transportation Systems (eo hona joale e leng ea Wabtec), qalong e ne e etselitsoe ho kopana le litekanyetso tsa U.S. EPA's Tier 2 emissions standard tse qalileng ho sebetsa ka 2005. Mohala ke mohlahlami oa GE Dash 9 ka kotloloho. Letoto. Likarolo tsa pele tsa tlhahiso li hahiloe ka 2003. Li-locomotives tsa Evolution Series li na le li-motor tsa AC kapa tsa DC, ho latela khetho ea moreki. Kaofela li tsamaisoa ke enjene ea GE GEVO.[4]

The Evolution Series e ile ea rehoa e le e 'ngoe ea "Likoloi tse 10 tse Fetotseng Terene" ke Makasine ea Terene 'me e ne e le eona feela letoto la literena tse hlahisitsoeng ka mor'a 1972 ho kenyelletsoa lethathamong leo.[5]

Literene tsa Evolution Series ke tse ling tsa literene tse rekisoang ka ho fetesisa le tse atlehileng ka ho fetisisa nalaneng ea United States.

Li-locomotives tsena li na le manaka a Nathan Airchime K5HL, a nang le tlhophiso e fetotsoeng ea 2, e etsang K5HLR2. Manaka a phahamisitsoe morao 'me litloloko tse 2 li shebile pele 'me litloloko tse 4 li shebile morao. Literene tsohle li sebelisa manaka ana, ntle le ET23DCM le literene tsa machaba.