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The Mercedes Concept IAA Changes Shape at High Speeds for Fuel Efficiently

 - Sep 17, 2015
References: benzinsider & gizmag
This elegant car titled the 'Mercedes Concept IAA' (Aerodynamic Automobile) adjusts its shape for better fuel efficiency. The car is shaped like a teardrop so it can move at lightning speeds.

While the car appears to have an average aesthetic when parked, this completely changes once it picks up enough speed. When the vehicle hit 50 miles per hour, the rear extends using eight segments that each enhance its length by 15 inches. Additionally, front bumper flaps extend, allowing for the airflow around the front wheels to improve.

Even the tire rims change as speed increases. Each rim goes from just over 2 inches to a flattened surface, meaning that the Mercedes Concept IAA "is able to bring the drag coefficient down from 0.25 to just 0.19."