"Seventy quid for a 70 mile Journey??? When did you last take a taxi that length in the UK?"
Sorry I should have been more specific - the outfit I use has a constant stream of cars running to & from LHR and Gatwick - so you only pay for for a one-way trip as they'll have an organised fare coming back
Plus it's not a Black Cab, metered run - price is fixed in advance with the driver - who probably delivers pizzas on his way home..
Used to be the same from Bologna to Ferrara Euro 100 one way - but they've become greedy and doubled the fare..........
But the methodology is the same - tip 10% of whatever the local cost is of your airport run to the Emirates driver