The 12M series was developed into the 12X (Type 72) supercharged engine, first run in 1931.
Running a supercharged engine with the fuel and materials technology of the day would never have lasted the duration.
Automotive commentators suggested the supercharged engine should have been made available for better performance.
Powered by a supercharged 6-cylinder engine, the car produced approximately 322 horsepower.
The supercharged engine was leisurely off the line, but had plenty of punch at high speeds.
The heavy throb of the supercharged engine soon filled the garage.
It used a 4.5-litre supercharged engine,although unblown engine were also available.
The 12N series was developed into the 12Y (Type 73) supercharged engine, first run in 1932.
Few changes occurred this year, except that traction control now was available with the supercharged engine.
The coupe is seven inches shorter than the sedan and will have a 190-horsepower supercharged engine.