Cheaper than HEX for 2 folks
Got quotes this week for a car from Mayfair (W1) to Heathrow, 2 people & 2 suitcases, from these two companies. One was £29 the other £30. Cheaper than the HEX for 2 people. Uber was £37 (no discount factored in).
http://www.ukairportcars.co.uk/Default.aspx
http://www.airportexecutive.co.uk/