????梅賽德斯-奔馳智能空氣動力汽車（IAA）

????乍一看，你會感覺IAA概念車就是一顆華麗的銀色子彈——一款S級尺寸的四門轎車。但它并沒有這么簡單：這是梅賽德斯在空氣動力學領域的最新嘗試，其阻力系數僅有.19，是梅賽德斯車體輪廓最流暢的一款汽車。

????按下一個按鈕或將車加速到超過時速50 英里，這款智能空氣動力汽車的外形會發生明顯變化，從車頭和車位伸出的分割部分會延長超過15英寸。格柵的調風裝置也可以移動，側鰓可以改變空氣流動的方向，主動式輪轂會和輪胎外側形成一個平面。這些變化將幫助這款汽車最有效地在空氣中穿行。

????此外，車內也有多款未來的系統，如所謂的“Car-to-X”技術。該公司表示，這項技術使IAA可以“偵測到街角的車輛”，并通過與其他車輛和數據源分享信息，避免交通事故。基于方向盤的觸摸控制，允許駕駛員將手懸停在一個緊湊安全的空間內，操作多種功能，就像手扶在方向盤上一樣。

????Mercedes-Benz Intelligent Aerodynamic Automobile (IAA)

????At first glance, the Concept IAA is simply a stunning silver bullet—an S-Class-sized four-door coupe. But there’s more to it: It’s Mercedes’ latest exercise in aerodynamics, and with a coefficient of drag of just .19, it’s the German automaker’s slipperiest silhouette yet.

????Push a button or accelerate past 50 mph, and the IAA literally shape shifts, with segmented sections that extend from the front and the tail of the car, lengthening it by more than 15 inches. Louvers in the grille can move, side gills redirect air flow and active wheel rims become flush—all to help the IAA most effectively cut through the air.

????There are plenty of future systems on board, too, such as so-called “Car-to-X technology,” which the company says allows the IAA to “look around the corner” and avoid accidents by sharing information with other cars and data sources. And steering-wheel-based touch controls allow the driver to hover over and operate multiple functions in a compact and safe—as in hands on the wheel—space.