considering the car will be slightly smaller, i wonder if they drop the screen size down to 13 or 15....?
Why? Did your arms get shorter? Fingers wither away? Eyesight improve?
A 17" diagonal measure 16:9 screen is around 14" tall, a little over 8" wide. Go sit in a
'smaller' car than a Model S, and let me know if there isn't at least that much space being taken up by whatever is in the center control area of the dashboard.
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We know how expensive Tesla body work is based on numerous forum posts on that aspect, but when other items start to fail will Tesla costs be inline with the rest of the world, or will their monopoly on Tesla parts make purchasing them a costly endeavor?
Chevrolet, Pontiac, Oldsmobile, Buick, and Cadillac vehicles used many of the same components for decades. You can walk into any NAPA Auto Parts or PEP BOYS and find a gazillion of them on the shelves. Why? Because they are parts that were designed to fail. Everyone knows they fail. Everyone has gotten used to them failing. No one imagines a car that doesn't become a rolling, rattling, confabulation of spare parts that conveys more spare parts with every passing month. Something tells me that auto parts stores will go out of their way to learn what breaks on Tesla Motors vehicles, contact their suppliers, and make sure they have plenty of them on hand... Just in case. Just like they do with everything else.
What I mean by the monopoly on their parts is that as far as I know, you can't get generic items that fit a Tesla other than the wheels and tires. Can you buy a tie rod, a door handle, a steering wheel, or a smart air suspension component from anyone other than Tesla? Not that I've ever heard, and I highly doubt it.
The door handles are made in-house by Tesla Motors, I'm sure that the same guys that provide door handles for a 1976 Nova to your local parts shop will be able to replicate them as needed. The steering wheel is a design borrowed from Mercedes-Benz' supplier. The air suspension bags are likely from BOSCH. None of these are things that are of actual concern... Unless you enjoy taking a sledge hammer to your car in a drunken stupor from time-to-time.
Hopefully this will change in the future, but for now they can charge whatever they want for components, and that scares me.
Fear is the enemy. People buy cars from Lamborghini, Ferrari, Fiat, BMW, Porsche, and a bunch of other guys... Knowing full well their options for reliable replacement parts may be limited. How is it they can overcome that fear, uncertainty, and doubt, but are so afraid of what Tesla Motors might do? You can replace anything and everything on a De Lorean DMC 12 with actual original OEM parts -- more than three decades after I graduated high school. Doc Brown would be proud.
Don't worry about it.