![BMW i Vision Dynamics concept, 2017 Frankfurt Motor Show [photo: Tom Moloughney]](http://images.hgmsites.net/tmb/bmw_100622408_t.gif)
If concept cars are meant to grab attention, then the BMW i Vision Dynamics Concept—an all-electric sedan that debuted Tuesday at the Frankfurt motor show—may have fulfilled its mission. With the huge, vertical twin-kidney BMW grille also seen on the BMW X7 SUV concept, the smaller four-door sedan concept grabbed viewers' attention...