6. Mazda Eunos Cosmo
The most powerful rotary equipped vehicle ever offered from the factory was the Mazda Eunos Cosmo. This was the flagship for Mazda’s short lived Eunos luxury brand and could be had with a choice of rotaries. The base engine was the same twin-turbocharged 13B two rotor motor found in the RX-7. But, for those wanting more power there was the 20B twin-turbocharged three rotor motor that produced 300 hp and 300 lb-ft of torque.
With that much power being produced from the largest rotary engine ever installed in a production car, fuel economy, as expected, was downright atrocious for the Eunos Cosmo. But hey, it did a color touch screen which at the time would have been the cat’s pajamas.