Here's how car speedometers calculate how fast your vehicle is going. And here's why they may not always be accurate.

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As downtown office dwellers filed into work on a gusty Monday morning in November, a white Toyota Prius rounded the block ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Wirecutter Staff A ...