Patients on the CardioWest heart, the successor to the Jarvik-7, have to wheel around a machine the size of a small refrigerator and are confined to a hospital.
To wit: The tachometer is the size of a wristwatch tucked into the left corner behind the steering wheel (you can switch the display on the LCD screen), while the option for connecting to an iPhone takes prime and primary placement in the center console screen.
The initial images the SUV-size rover sent back to Earth were black and white and grainy, but one showed its wheel resting on the stony ground, and the vehicle's shadow appeared in another.