This latest in a long line of E-Class prototypes roaming the streets of Europe is one of the most revealing testers of the next E63 AMG Wagon, disclosing the rear lights of the series for the very first time.

The rear end treatment of the new 2017 E-Class Wagon is very different from that of the sedan model, but very similar to the smaller C-Class Estate sporting elongated, split rear lights. It’s also a smidge less boxy than the car it replaces with a more angled rear window that will probably make it slightly less practical and roomy than the existing car, but still good enough to be among the best in its category.

Another thing we noticed about this specific tester is the unique front treatment for the E63 AMG models that differ from the regular E-Class sedans and estates. Aside from the reshaped AMG-style bumper with the larger vents on either corner, the E63s get a clam-shell-like design for the bonnet, as whereas on the standard E-Class models the hood goes all the way down to the headlights, on the E63s, it leaves a space above them.

The massive brake discs on all four corners peeping through the large alloys that are housed under swelled wheel arches, side skirts and a rear diffuser flanked by quad pipes, complete the car’s looks on the outside, while inside, we expect Mercedes to give the E63 a pair of body-hugging front sports seats, and model-specific steering wheel, trim and instrument panel graphics.

A recently leaked document gave us the specifications of the next E63 models that will be powered by a newer 4.0-liter twin-turbocharged V8 punching out 571PS (563hp) and 750Nm (553 lb-ft) in base form, and 612PS (604hp) and 850Nm (627 lb-ft) in ‘S’ trim, versus 525PS (518hp) / 700Nm (516 lb-ft), and 585PS (577hp) / 800Nm (590 lb-ft) of the outgoing regular and ‘S’ E63 models with the 5.5-liter V8. This makes the new E63 AMG more potent than either of its German rivals, the Audi RS6 (up to 605PS in Performance trim) and BMW M5 (up to 600PS for the limited editions).

All E63 AMGs will get a 9-speed automatic transmission offering both rear- and all-wheel drive layouts, depending on the market.

We should see the first pictures of the standard E-Class Wagon this summer before its public debut at the Paris Auto Show in the fall, with the E63 AMG variant to follow shortly after.

Photo Credits: CarPix for CarScoops

Photo Gallery