
The next generation rotary engine, dubbed "16X," is currently under development.Rumours suggest that the RX-8 may be replaced by a new smaller, lighter, simpler rotary engine sports car set to compete with the likes of the upcoming Toyota FT-86. It is also rumored to use Mazda’s new 16X rotary engine which is said to be ‘quite a bit bigger’ than the current twin-rotor design.
Key points for the RX-8 successor include the introduction of direct injection technology – a first for a rotary engine. The new car will also have aluminium side housings, 1600cc capacity instead of 1304cc of the 13B RX-7 and RX-8 engine, and new engine dimensions with increased stroke and reduced rotor width for improved thermal efficiency and more torque.
Japanese reports and Autocar both claim that the RX-8 successor will have around 290 horsepower. They also claim the car should weigh in around 2800 lbs, making it a true light-weight sports car.
The RX-8 successor is currently in development, and should be in production by 2014.