ʻO ka Evolution Series kahi laina o nā locomotives diesel i kūkulu ʻia e GE Transportation Systems (nā Wabtec i kēia manawa), i hoʻolālā mua ʻia e hālāwai me nā kūlana hoʻokuʻu locomotive Tier 2 o US EPA i hoʻokō ʻia i ka makahiki 2005. ʻO ka laina ka mea pani pololei i ka GE Dash 9 moʻo. Ua kūkulu ʻia nā ʻāpana hana mua i ka makahiki 2003. Hoʻolako ʻia nā locomotives Evolution Series me nā kaʻa kaʻa AC a DC paha, ma muli o ka makemake o ka mea kūʻai. Hoʻohana ʻia nā mea a pau e ka ʻenekini GE GEVO.[4]

Ua kapa ʻia ka Evolution Series ma ke ʻano he "10 Locomotives That Changed Railroading" na Train Magazine a ʻo ia wale nō ka moʻo locomotive i hoʻokomo ʻia ma hope o 1972 i hoʻokomo ʻia i kēlā papa inoa.[5]

ʻO nā locomotives Evolution Series kekahi o nā locomotives kūʻai maikaʻi loa a lanakila loa i ka moʻolelo o ʻAmelika Hui Pū ʻIa.

Hoʻolako ʻia kēia mau locomotives me Nathan Airchime K5HL kiwi, me ka hoʻonohonoho hoʻohuli 2, e hana ana i kahi K5HLR2. Hoʻopaʻa ʻia nā pū i hope me ka bele 2 e kū pono ana i mua a me nā bele 4 e huli ana i hope. Hoʻohana nā locomotive a pau i kēia mau pū, koe wale nō ka ET23DCM a me nā locomotives honua.