Built to rival Tesla’s Model S, BMW’s i4 saloon will be capable of 435 miles on a charge. This model is based on the iVision Dynamics concept, as revealed at the 2017 Frankfurt Motor Show. The four-door coupé will sit between the i3 and i8 in the brand’s i family. The manufacturer assures us that the iVision Dynamics concept is a reliable representation of the i4’s design, which means the full-length panoramic glass roof, enormous front kidney grille and razor-thin LED lights should be retained for production.