随着新一代B5的发布，宝马半官方改装厂Alpina的新款B5也将很快露面。最近有人拍到了正在测试的原型车，新车预计将于明年初亮相。之所以确定这是B5主要该车设计具备明显的Alpina风格，包括车头更宽阔水平设置进气口和多辐轮圈。预计新款B5将继续搭载4.4升V8双涡轮引擎，功率600马力。虽然功率和老款车相同，但新车百公里加速时间将比老款车的4.2秒更快，最高时速也将超过老款车的204英里（约合328公里）。新车性能的提升主要得益于新款5系采用多种复合材料后重量的降低，某些5系车重量将比老款车轻220磅（约合100公斤）。该车标配的八速自动变速器经过调校后换挡速度也更快。

2018 BMW Alpina B5 spy shots
There’s a new  5-Series, and that means we will soon see a new B5 from semi-official BMW tuner Alpina. A prototype for the car has been spotted testing ahead of a likely debut early in 2017.

We know this is the B5 and not just another prototype for BMW’s own M5 because of some signature Alpina design cues such as the wide, horizontal intake up front and multi-spoke wheels.

Expect the new B5 to continue with a twin-turbocharged 4.4-liter V-8 matching the 600 hp of the outgoing model. Even with the same output, we expect the new model to better the previous one's 0-62 mph time of 4.2 seconds and 204 mph top speed.

Where the performance gains will come is the lighter weight of the new 5-Series' multi-material construction. Some 5-Series models are as much as 220 lb lighter than the predecessor. The standard 8-speed automatic transmission will also be tweaked for quicker shifts.