最近谍照记者拍到了宝马4系敞篷车照片，从照片看，该车采用了折叠软顶而非现行版的硬顶。虽然不能完全确定，但这辆原型车极有可能采用的是量产版车身。此外还能看到一些伪装的车身面板，特别是在车头部分，但整体来看，该车的侧面与现行版略有不同。例如，前悬更短，行李箱盖集成了一个小的扰流器，看起来也更长一些。由于车身采用了大量伪装，因此无法看清车头设计细节，但格栅造型和尺寸让人联想到Z4。4系敞篷车与3系轿车和旅行车共享CLAR平台，因此车重将进一步降低，新车不仅比老款车轻了55公斤，而且内装和行李箱容积还将获得提升。新车动力系统包括四缸和六缸汽油/柴油引擎，该车一大亮点是将搭载动力最强四缸引擎。受益于引擎内部磨损降低和搭配八速Steptronic变速箱，这台涡轮增压引擎燃油经济性将比老款引擎提升5%。4系敞篷车将与轿跑车一起在2020年首次亮相。
BMW 4 Series Convertible Spied With Soft Top
BMW is slowly returning to its roots – the new Z4 switched from a hardtop to a lighter and prettier soft top, and it seems that the next-generation 4 Series Convertible will follow suit. These are the very first spy photos of the vehicle, which confirm the cabrio will use a fabric foldable soft top instead of the hard top of the current model.
We can’t be completely certain, but there’s a very high possibility that this prototype uses a production body. There are a couple of fake body panels, especially at the front, but the overall profile of the car appears to be slightly different than that of the current one. For example, the front overhang is shorter, while the boot lid, mainly thanks to the additional small spoiler, looks longer. The significant amount of camouflage is not letting is take a clear look at the front end design, but the shape and size of the grilles strongly remind us of the aforementioned Z4.
Just like its 3 Series sedan and wagon brothers, the 4 Series Convertible will be based on BMW’s CLAR platform, which should bring healthy weight shaving benefits – the car will be up to 121 pounds (55 kilograms) lighter and will feature improved interior and boot volumes.
The engine range will continue to include four- and six-cylinder gasoline and diesel engines, and the highlight is expected to be the most powerful four-cylinder engine ever installed by BMW in a series production car. It will be a gas turbo motor around five percent more efficient than its predecessor, mainly thanks to the reduced inner friction and the upgraded eight-speed Steptronic gearbox.
Codenamed G22, the new 4 Series Convertible, together with its G23 Coupe sibling, should debut in 2020.