The team narrowed down the possible engine choices to a 4-cylinder 16-valve 1.6-liter inline DOHC engine. They decided to stick to natural aspiration, without any turbo or supercharger. The MX-5’s Jinba Ittai-infused fun-to-drive character was realized by neither a surprisingly high output nor advanced engine control technologies.
While keeping mechanical losses and engine resistance as low as possible, the team achieved a smooth engine power curve and linear acceleration up to the rev limit; characteristics that provide an exhilarating experience for the driver.
In order to ensure adequate feedback when changing gears, engineers created a “powerplant frame” to rigidly connect the transmission and differential. It significantly enhanced the performance feel and became an essential technical element in the evolution of the MX-5.
For the suspension system, the development team chose a double wishbone setup for all four wheels, due to its superior dynamic characteristics. Despite the extra complexity this involved, the engineers never thought of compromising in their pursuit of the best possible sports car. The suspension is another reflection of the engineers’ dedication to “Jinba Ittai.”