World’s least powerful gullwing door sports car finally gets the rotary power it deserved

Once bound by kei car rules, this Mazda Autozam AZ-1 now breaks them all with a widebody and serious firepower ...

Why Mazda built the three-rotor 20B engine (and used it just once)

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...