宝马将对2019款740e插电混动车的动力总成进行大幅升级，新车也将更名为745e。据宝马博客援引一位宝马内部人士的消息称，新车将配备动力更强电机和更高容量电池，这意味着更大功率和更长的电动模式续航里程。新车仍将搭载一台2.0升四缸涡轮引擎，但电机功率更强劲，车辆总计输出功率从目前的240千瓦/322马力提升至290千瓦/390马力。现行版740e 0-96公里/小时加速时间为5.1秒，预计745e加速时间4秒多。高容量电池的物理尺寸一样，但能量密度超过现行版搭载的9.2千瓦时电池。由于电动容量增加，因此745e纯电动续航里程将超过现行版的23公里。另外，新车还将提供无线充电功能。此外，新车还将提供时下流行的全数字仪表群。
2019 BMW 745e PHEV Will Allegedly Have 390 HP, Longer EV Range
BMW will allegedly give the 740e plug-in hybrid a big powertrain update for the 2019 model year that will possibly prompt a name change to the 745e. A more powerful electric motor and higher capacity batteries will mean a higher output and longer electric range, according to BMW Blog citing anonymous sources from BMW in Munich, Germany.
The upgraded plug-in 7 Series would use the same 2.0-liter turbocharged four-cylinder, but the more potent electric motor would reportedly push the total output to 390 horsepower (291 kilowatts) from the current 322 hp (240 kW). The existing 740e can reach 60 mph (96 kph) in 5.1 seconds, so the extra power might be enough to push that figure into a high four-second range.
The higher-capacity batteries will be the same physical size but with an improved energy density over the current 9.2-kilowatt-hours. A higher kilowatt-hour rating would boost the current 14-mile (23-kilometer) range on electric power. According to BMW Blog, the EV system upgrade would also allow for wireless charging.
In addition to the powertrain improvements, the 7 Series would allegedly follow the current trend for vehicle interiors by switching to a fully digital instrument panel.