...abondend the rotary engine.

Remember the C 111 with the three discs rotary Wankel?

Just imagine what would have happend if Mercedes would have spent the effort of Mazda to get that thing more efficient and more durable.

Pistons going up and down, now matter how many, is basically a technology of the steam age.

Even the new Bugatti with a zillion of pistons can trace it roots back to a Shay locomotive.

Kind regards
Eberhard