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It says right on the webpage: Conventional all-wheel drive cars employ complex mechanical linkages to distribute power from a single engine to all four wheels. This sacrifices efficiency in favor of all weather traction. In contrast, each Model S motor is lighter, smaller and more efficient than its rear wheel drive counterpart, providing both improved ...


I am not an expert but I read in an article somewhere when Tesla introduced the P85D that the dual-motor version is more efficient at putting power to the wheels since it can use all four wheels instead of just the rear wheels. This even offsets the increased weight of the dual-motor setup and translates to a 2% increase in range.


I had the same issue. One tire needed to be replaced, tire store told me I had to replace all 4. Not wanting to give up good money for no reason, fearing they were just trying to get more money out of me, research led me to replace all 4 for better peace of mind and for a longer lasting Subaru. But the tire place did tell me if I purchased the insurance ...

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