Yes, you can eat in the car but only light bites and beverages are allowed in the vehicle. You cannot have proper meals sitting in the car because if it gets spilled out will make the vehicle dirty from inside which will not only be inconvenient for you but also for the next customers who go for the booking of the same vehicle. There are so many good places in Kota Kinabalu where you can sit and eat while enjoying the beauty in your surroundings and you won't want to miss this chance and have your meal in the car.