I think YES, then transmission also counts; 4 speed, 5 speed, 6 speed, etc.
If rpm meter is there, try that it goes to max. 2500~3000. Do not let it go beyond it, irrespective of speed of your vehicle.
07 seater VAN with 1000 cc engine (please correct me, if I am wrong), what else one can expect?
Dear, Isuzu D Max and Changhan Karavan have no compariosn with each other. Engine (hp, torque, etc.), body class, etc. are all altogether different.