C pointers vs direct member access for structs

Question

Say I have a struct like the following ...

typedef struct {
  int WheelCount;
  double MaxSpeed;
} Vehicle;

... and I have a global variabl

Answer 1

Direct member access is faster (for pointers you'd get one pointer dereference operation more, typically). Although I'm having a hard time imagining it in a situation where it'd be a problem, performance or otherwise.