Emirates - pick up car etiquette?
In a few weeks to time we are flying for the first time with Emirates, as part of the package we are being picked up at home and dropped back at home upon our return. The journey length is about 70 miles each leg. The cost of this is of course included in the ticket but I wondered if there was any sort of agreed etiquette with regard to giving the driver a tip? To give or not to give? How much etc? (Heathrow if that makes any difference).
Similarly when we arrive in India we will have an Emirates courtesy car from Mumbai airport to our downtown hotel which is about 25 miles away? Again, any local etiquette to follow?