According to the UK's Car magazine, the new wagon was already well into the later stages of development, but a renewed focus on production savings has since moved management to bin the shapely wagon.
It is believed that although the new Shooting Brake's look had been well received within the company, slow sales for the current model, along with a lack of interest in North America and China, played a significant role in the decision.
Above and top: Current-generation Mercedes-Benz CLS Shooting Brake.
The second-generation CLS "four-door coupe" made its production debut in 2010, with the Shooting Brake added to the line-up two years later. The next-generation CLS is expected to be launched around 2018.
In Australia, the CLS Shooting Brake is available with a 150kW 2.1-litre turbo-diesel (CLS 250d), as well as a twin-turbocharged 300kW 4.7-litre V8 (CLS 500).
The wagon variant misses out on the sedan body's CLS 400 and AMG CLS 63 S options, which are powered by 245kW twin-turbocharged 3.5-litre V6 and 430kW 5.5-litre V8 engines respectively.