typedef dbstl::db_map<const char *, Car> owner_car_map_t;	// (1)
owner_car_map_t ocmap;

while (has more owner-car pairs to input) {
  // Accept input data for owner name and car, create car.
  cin>>owner>>len>>width>>height>>hp>>ncyl>>displ;

  Engine *pEngine = new Engine(hp, ncyl, displ);
  Car car(len, width, height, pEngine);
  ocmap[owner.c_str()] = car;					// (2)
}