This is the case of Frank M. Rinderknecht (Rinspeed founder) last vehicle.
More than a just vehicle, it is a concept, a “backpack” specially designed to make the Smart more versatile, a mini-trailer that adapts to various uses, from made to measure trailers for delivery services, to a high-tech range extender powering the electric motor.
The various features of the Rinspeed Dock + Go receive different names, the pack that particularly interests is the "Energy Pack", adding 63cm and 310kg to the car. Several technological options are possible for the Energy-Pack (a Variohybrid like Mr. Rinderknecht likes to call it), it can feature extra batteries, or a range extender based on a 999cm3 petrol engine or even on a fuel cell!
The Smart ED which is used as base for this concept is slightly redesigned with rectangular headlights –very Rinspeed- while its interior could any Smart Tailor Made jealous, with its large screen and a Smart Phone dock on the steering wheel.
An elegant battery indicator is placed close to the rearview mirror.
The Dock + GO is a concept that could potentially be adapted to any kind of car.
The other feature of the Dock + GO is called "Space-box".