I have a Mercedes E-350, and while it is a pretty good car, it in no way compares to my X. It's only advantage is that it is more nimble in the city, but otherwise is is in most way inferior to the X.
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The biggest differences are the comfort, quiet and driving experience that only a fully electric vehicle can provide.
Tesla...it drives like no other.
Interesting point. As a former owner of several Mercedes E-class cars in a row, I was feeling nostalgic on Saturday when a friend of mine brought his new (to him) used E320 to my house to show me. I had had the same model and had fond memories of it. I sat in it and was remembering the seats, adjustable headrests, movable center armrest, storage compartments, and so. the leather was soft, the seats firm, the wood nicely finished, everything fit as it should, and the doors had that nice solid "thunk." Then he said I could drive it.
Suddenly I felt as if I was driving a very old, very tired car. The lack of easy acceleration from a stop, the noise, the creeping ahead at stoplights -- I was actually laughing as I tried to get it to move as I wanted it to. There was (most likely) nothing wrong with the car -- it just was a car that no longer felt lively or responsive. And I am sure that I would have loved it before I had my Model S. The E320 had as much or more power as any of the cars I had ever owned before the Model S, and I am not a performance guy -- I only have a 70D!
But in those few minutes I was definitely reminded of what the Tesla is all about.
Yes, it is true my Model S is much newer than my friend's E320 and that was part of the difference. And yes, I do wish the Model S interior was nicer in all the ways that people talk about (better upholstery, better seat design, better lighting, etc.) but as much as I envy the comforts and materials of the Mercedes, I don't think i could back to driving an ICE.
Now, if and when Mercedes (or BMW or Volvo or Audi, etc.) actually brings out a competent E class all-electric car,
then Tesla will have a run for its money on these type of differences....