Can I suggest that you try ELVY'S he is a very reliable driver and great guide, he know all about Bali and the best places to go and nothing is too much trouble for him, his car is very clean and can fit at least 6 people in, and he speaks very good english, so you can either contact him by email on
madenegaras@hotmail.com or mobile number 081 558 049784 just text him when you arrive and he will pick you up from the Airport or from you hotel to take to you to the best spots, he comes highly reccomended