奔驰-AMG将在3月初的日内瓦车展发布一款新的概念车，该车将是未来豪华四门轿车的概念版车型，也将成为保时捷Panamera竞争车型,，目前这款车临时被称为GT4。而据AMG老板Tobias Moers透露，该车已经排上日程。最终量产版将于明年上市并将搭载概念车相同的447千瓦/600马力4.0升V8双涡轮引擎。作为CLS Shooting Brake的替代车型，量产版将基于MRA平台，该平台经过AMG工程师改进后将采用独特轴距和轮距。更重要的是，该车将大量采用铝制材料和热加工成型高刚性钢材以便能在保持相同结构的同时降低重量。另外，该车将采用与AMG其他车型不同的专门开发的悬挂系统。量产版搭载的4.0升V8双涡轮引擎可提供两种不同的功率，其中全驱版本将是标准配置。这台引擎还将搭配集成式起动发电机，这不仅将使引擎可以在短时间内功率提升15千瓦/20马力，而且可以提升车辆加速性。除了这台引擎，车厂还将提供一台3.0升引擎，无论4.0还是3.0升引擎都将搭配双离合自动变速器。
Mercedes-AMG GT4 sedan concept to surprise in Geneva
The upcoming 2017 Geneva Motor Show in early March will see the debut of a new concept vehicle from Mercedes-AMG, previewing a future luxury four-door, Porsche Panamera-rivaling sedan. Tentatively called the GT4, the study will be the highlight at the German company’s Geneva stand, where it will celebrate its 50th anniversary.
We’ve discussed this topic several times so far, and we even got a strong indication by boss Tobias Moers the sedan is already in the agenda. The final production model will arrive in European dealerships in 2018 and will be previewed by the aforementioned 600-horsepower (447-kilowatt) concept with a 4.0-liter V8 biturbo engine.
Serving as a replacement for the CLS Shooting Brake, the production vehicle will be based on the MRA platform, which will be modified by AMG engineers and will feature “unique” wheelbase and track width measurements. What’s more, an extensive use of aluminum and hot-formed high-strength steel will keep the weight lower than other current models based on the same architecture. Also, a unique suspension layout would differentiate the GT4 from the rest of AMG’s products.
Just like the concept, the production model will be powered by the company’s latest 4.0 V8 engine, which will be offered in two power stages. All-wheel drive will be part of the standard equipment. Interestingly, the engine could be coupled with a new integrated starter generator (ISG), which should provide an improved acceleration from a standstill and additional 20 hp (15 kW) for short periods of time.
For those who want a more frugal Panamera alternative, Mercedes-AMG will likely introduce a version with a 3.0-liter engine. Both the 4.0 and 3.0 variants will use the latest evolution of the firm’s dual-clutch automatic transmission.