The rare Mazda RX-7 Group B rally car, one of 19 units, is up for auction, featuring a unique design and a 13B rotary engine.
Replacing that engine with a tiny 13B rotary resulted in a car much more sluggish than the competition, as well as much less efficient. Quite ironic considering the "AP" in the name stood for ...
The 238 hp 13B RENESIS engine is the most powerful non-turbocharged rotary engine ever installed in a production car from the factory. With the six-speed manual it was possible to rev this motor ...