From the announcement:
The Wheels of Steel offer is back! Buy three selected vehicles for £40/$64!
Don’t forget you can wage entire wars using tanks alone with the Bolt Action Tank War supplement! From the vast sweeping open planes of the Eastern Front, the searing heat of the desert, into the Boccage country of Normandy and on to the Forested slopes of Belgium – the grinding of metal tracks is heard across the world as tanks clash!