A four-wheeled carriage with a collapsible top two double seats inside opposite each other and a box seat outside in front for the driver.

四轮四座大马车带折叠篷的四轮马车，内有两个彼此相对的双人座位，外侧前部有供赶车人坐的包箱式座位。

youdao

Collapsible portable aluminum frame, solid front, solid rear wheel plastic wheel box, up on the rails, after the hand with self-locking brakes, seat belts.

可折叠便携式铝合金车架，实心前轮，塑料轮框实心后轮，上翻扶手，自锁式后把手连刹车，安全带。

youdao

Expect styling to come to the fore, as vehicle design is less influenced by safety considerations like visibility, window placement, strength and stiffness of materials, bumpers, crumple zones, collapsible steering columns, air bags, seat belts, and padding.

FORBES: Google's Trillion-Dollar Driverless Car -- Part 2: The Ripple Effects