Editing Engine configuration (section)

== Wankel (rotary) engines ==
{{expand section|date=August 2019}}

[[Wankel engine]]s (sometimes called 'rotary engines') can be classified based on the number of rotors present. Most production Wankel engines have two rotors, however engines with one, three and four rotors have also been produced.<ref>{{cite web |title=Technically Interesting: Dr. Wankel's Quad-Rotor Mercedes SL |url=https://bringatrailer.com/2018/03/21/technically-interesting-dr-wankels-quad-rotor-mercedes-sl/ |website=www.bringatrailer.com |access-date=31 August 2019 |date=21 March 2018}}</ref><ref>{{cite web |title=How a Four-Rotor Wankel Engine Works |url=https://www.roadandtrack.com/motorsports/videos/a31678/how-a-four-rotor-wankel-engine-works/ |website=www.roadandtrack.com |access-date=31 August 2019 |date=23 November 2016}}</ref> Wankel engines can also be classified based on whether they are [[naturally aspirated engine|naturally aspirated]] or [[turbocharger|turbocharged]].

Most Wankel engines are fueled by petrol, however prototype engines running on diesel and hydrogen have been trialed.