In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...

Mazda is most noted for its rotary engine, developed by Felix Wankel in Germany before World War II. But of all its rotary-powered cars, one stands out.

The rotary engine was an unconventional design that delivered great power for its size. Here's what's good and bad about it.

How the 13B-MSP Renesis evolved from earlier Mazda rotary designs, technical features explained, and common problems and maintenance issues discussed. The 13B-MSP Renesis rotary engine powered the ...