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

For reference, during Bugatti's most recent record with the W16 Mistral, Michelin insisted on changing tires every few miles.

We’ve all had that supercar poster on our wall. What was yours? Lamborghini Countach? Ferrari 360? Porsche 911 Turbo? Whatever that wall art was, it single-handedly dictated your journey into car ...