Think of a new series! Comment your idea. Here's the template.Series Idea:What The Idea Is:The winner's idea is my new series!
Plenty of different types. Steam, air cooled, turbine, Radial, V twin (or more), straight 6 (or any number of cylinders), Bike, Car, Train the list goes on.
What the Idea Is: Strange
... I used the form... But you've not made a puzzle since Nov 2016, so...
Anyway, good puzzle!