The firm I work for, has a fleet of E classes.....but you pay extra if you want one....£10 extra....tis all...
Trip into town....£6 or £16, Id take the £6 option...
Heathrow £75 or £85, Id have an E class every time
Depends very much on what the alternative to the E class was, the company we use at work for airport transfers has E class Mercs and Superbs, the Superb is SO much more comfortable than the Stuttgart Taxi in the rear.
The firm used to have a fleet of Superb's, until the local Skoda dealer tried to rip them off.....you would think the dealer would give a discount when a customer says something along the lines of "How much for 10 of them?" . But when the dealer replied "You pay the screen price" they walked away and refused to buy another Skoda again. Hence the E classes now....MB give them discount!
So the alternative to an E class, could be anything the council will give a license to...which is just about any car, as long as it has 4 passenger doors and not a convertible......could be a bmw 5 series .... or how about a trip to airport in shitron C1
or Honda Jazz
or whatever driver/owners use.....even a Mondeo 1.6TD estate