Among those extras are a standard radar-based warning system with Active Brake Assist, which will give visual and audible warnings for an anticipated collision and help out with braking as needed.
Also included in all 2014 B-Class Electric Drive models is Attention Assist, which studies the pattern with which you make corrections to the steering and anticipates when you’re dangerously tired, flashing a warning and coffee-cup symbol.
Mercedes-Benz has placed the battery, sandwiched, in the so-called ‘Energy Space’ of the B-Class’s underfloor, where it can be well-protected in virtually any kind of crash; it’s entirely above axle level, and it’s protected from below by puncture-resistant shielding. There are also seven airbags in all, including driver and front passenger window bags and a driver knee bag.
Although U.S. crash-test ratings are unlikely, due to the B-Class Electric Drive’s rather low estimated sales numbers, the model fares very well according to the EuroNCAP (European) safety protocol; there, it’s one of the top-performing vehicles for adult-size occupant protection, and a five-star (out of five) performer overall.