The Transformers: Evolutions

Gotham by Gaslight was cool! Lets do it with Transformers!

The Transformers: Evolutions is a line of alternate-universe Transformers comics published by IDW Publishing. The first story arc, Hearts of Steel, presents a reality where the Transformers awakened in Industrial Revolution-era USA. Bumblebee and others become steam locomotives, while Shockwave is an ironclad ship instead of a ray gun, and so forth.

Chris Ryall has said it's very unlikely we'll see more from Evolutions. [1]

From Teletraan I: The Transformers Wiki, a Wikia wiki.