I just going to tell you about honda jazz i- Dtec. As I know it has same engine like honda city i-Dtec. There is nothing change in its engine.
They have changed only body and some interior design, nothing then more. Hondas diesel engine is not good then their petrol. about jazz i-Dtec they company had gives many good features like touch display, start button, stiles dashboard or more.
Also it has good leg space. As I know it wants more service then other cars. its not comfortable for big or highted person also.