ToRn,
It is apparent, through the joking and playing aorund, that y'all get along well together. Try not to overthink the perfect dating experience that she would enjoy. It seems like she simply enoys your company. If y'all were friends before, it seems like y'all would be sharing the ride to the destination. In the car is where y'all will be getting to know each other. Take your time, drive at a casual pace, talk and learn about each other. The final destination is secondary. The journey to that final destination is the actual date. Just my 2 cents.