Hi Alan, On a daily basis we transport people from SE22, SE23,SE21, SE24, SE15 and similar areas. On occasion, we have had 3 cars taking people eg Barry Rd SE22 at 5am to Heathrow, 2 cars picking up at Lordship Lane also to Heathrow and say, another 2 cars picking up at 5.15am from Peckham Rye also to Heathrow, My point is with good organisation, one could arrange these pickups in such a way that one car could take 2 or even 3 pickups if the times were staggered like 4.55am, then 5am then 0505am since the pickups are less than a mile apart! Obviously, things like terminal and number of passengers would have to be considered, but it only takes a little to arrange such things!