OIC, really need to keep it well. I'm happy to see that car again since it is my first R/C car (hobby grade) when I was 10 years old if I remember timming correctly. Thanks my mother who bought me this big toy.
Thanks Kevin advise, my car is the old GTR33 but I haven't low down it too much or having fancy side skirt etc, it can pass most carpark speed bump and road side step, the ground clearance is same those small cars like Corrolla or Civic except the front lip is a bit lower.