Theophilus Chin has decided to share his vision of the rumored Mercedes-AMG GT4 which will compete with the second-gen Porsche Panamera.

The attached digital illustrations are obviously based on the AMG GT and show a longer body with rear doors and a sloped roofline maintaining the model's sleekness despite the size changes. The car is believed to hit dealerships by the end of 2018 or early 2019 and will apparently be based on the next generation CLS (could be renamed CLE) so it will share many of the hardware bits and pieces with the upcoming E-Class W213. 

However, it will boast a standalone design and according to the latest gossip it's getting bespoke quarter panels, bumpers and doors. Moreover, the lighting clusters will also be developed specifically for this model which is also said to receive a practical tailgate and possibly a bigger trunk to make it a more practical grand tourer.

The engine lineup will be plentiful as sources close to Mercedes-AMG are saying there's going to be a new 2.9-liter turbodiesel inline-six with approximately 300 bhp (223 kW) along with a high-output version rated at an estimated 400 bhp (298 kW). Interestingly, there will apparently be an electrified six-cylinder turbo pushing out 455 bhp (339 kW) followed by a V8 duo with 557 bhp (415 kW) and 585 bhp (436 kW).

Don't be too surprised if the four-door, four-seater AMG GT will show up in conceptual form sometime next year or in 2017.

Gallery: Panamera-fighting 2018 Mercedes-AMG GT4 speculatively rendered

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