Trucks can be quite scary to those driving smaller vehicles on the road, but the Scania Concept you see here is different as it soothes the overall rough design lines into something much more pleasing. For instance, this theoretical design will turn trucks into eco-friendly vehicles in the process thanks to the use of a diesel-electric hybrid engine, boasting an interesting wheel-hub design which comes with indicative color-coded LEDs that will light up accordingly to the current speed, ensuring other road users are wary of whether speed limits are being adhered to or not.