The chauffeur industry love the Mercedes brand as a car choice, I certainly do.
Jaguar and BMW are quite popular too, and even the Audi A8 lwb has a fan club.

But Mercedes is by far the preferred choice.
I am a Mercedes E-class driver and built my company up on this vehicle choice successfully.
Perfect for 1, 2 or 3 people on long distance travel and with ample leg space, but most bookings are a single person, so with front passenger seat forwards, their is extra leg space for the client sitting in the rear.
Boot space is slightly more generous in the E-class than S-class I think too.

I’m Nottingham based chauffeur, and during my trips to London, I see many S-class saloons.
Yes there is likely bigger demand there, and wealthier clients looking for that special luxury car, and they are willing to pay for it.
Chauffeurs are helped to, by Mercedes Benz dealers offering a chauffeur package that limits the annual mileage to 50,000 per year, something London based chauffeurs may be able to do.

Nottingham based drivers need to travel 140 miles each way to Heathrow compared London chauffeurs doing 18 miles each way to Heathrow.
I’m doing 90,000 miles per year, so the chauffeur package isn’t available to me.

My customers are happy with the E-class saloon, and rates I charge for this.

But, I do get a few enquiries for the S-class each year, some for wedding car bookings Nottingham and some for general chauffeur or airport work.
I have associates who have S-class saloons who are happy to cover these booking requests.
Rates are obviously higher for these cars by up to 20/25% but when you consider the cost of buying a new S-class is up to £90,000 compared to a E-class which is £34,000 drivers of S-class saloons are paying out more for everything related to car too.

Me, I’m sticking to driving Mercedes E-class saloons for peace of mind, affordability and because for my customer base they are perfect.
Brand new Mercedes E220 SE and now a NEW Mercedes V-class 6 passenger MPV has just been added too.
I change my own car every 3 years to keep them modern, new and it’s affordable, especially when you consider I’m doing 270,000 miles in the 3 years I keep 1.
What customer doesn’t like getting in to a new Mercedes?
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Chauffeurs who care about client travel and comfort.

New 17 Reg Mercedes E-class saloon