Mazda had a simple explanation for why we had flown to Germany to drive its made-in-Japan next-generation Mazda 3 hatchback in prototype guise: Such early prototypes are allowed to roam German roads, ...

HCCI combines the benefits of gasoline and diesel engines without their drawbacks, achieving diesel-like efficiency while maintaining gasoline-level cleanliness. However, controlling HCCI is a challen ...

The automotive industry continues to be a hotbed of innovation, with activity driven by factors such as auto-ignition properties of the fuel, fuel concentration, and residual rate, and growing ...