The August Marathon was added in today’s 184.108.40.20637 Micropatch.
For the first time in World of Tanks, players can get their hands on a Tier IX Premium vehicle, which also earns bonds. The Swedish Heavy, Strv K. The tank also appears to come with the unique Sabaton crew. The Marathon is expected to start Friday and follow the same format as previous Marathons, where you can earn 10% discount for completing each stage, or, purchase the tank early and get a discount on purchasing the unique 3D Style.
Here are the Strv K’s stats from the Supertest in March:
Also, whilst these are listed as insignia decals, I think the tank will have unique Marks of Excellence:
And more artwork of the vehicle