We discuss the fascinating Wankel rotary engine, which works without pistons or a crankshaft. This unique engine was famously used in Mazda's RX-7 and RX-8 models, providing a distinctive sound and explosive acceleration. While the rotary engine had issues with fuel efficiency and emissions, leading to its decline, some companies are now bringing it back as a range extender for electric vehicles, taking advantage of its compact size and high-revving capabilities. | Auto Viral