Is green engine is a rotary engine?

Rotaries have gotten better, but that's it. A piston engine is far superior. It has much more tuning available to it and makes more power and torque. Also they are more reliable and more durable,...

There isn't one that is "faster" and it depends on you're definition. Engine speed and the car's speed both can be defined as how "fast" it is. I'll try to answer for both cases. If you mean engine...

One which generates its power using rotary (like the Wankel engine) rather than reciprocal motion.

An engine designed by Felix Wankel and idea bought/funded by Mazda to use in vehicles. Normally was to be used in aircrafts due to its lightweight and great power to weight ratios. These engines are...

Usually not. The seals in a rotary that does the job of the piston rings in a piston engine have a much harder job to do, and tend not to last as long.