Take the BMW i7, which features a powerful EV powertrain with a nearly silent operation. Electric powertrains make a lot of sense in a large luxury car. . Read our honest assessment of its practicality and driving performance, and compare its running costs and prices. New EVs are arriving thick and fast – here's your guide to what's coming this year. And is this the best car interior in the world? A complete review of the Kia EV9. The BMW 7 Series is a machine with real character, which is a major achievement. Built on a stretched version of its Electric-Global Modular Platform (E-GMP), which is capable of numerous battery and drive configurations, the Hyundai Ioniq 7. This cavernous and quick all-electric seven-seater is the Korean car brand's play to beat luxury SUVs that are twice the price.