From the announcement:
We like to work hard to keep things competitive with our miniature pricing though this is sometimes tough with licensed miniatures. We have been working with Robin to bring down the cost of the Gruntz Imperator Mecha so it is now available at the reduced cost of £18.00, down from £20.00.
Whats more is that the Imperator Battlegroup is once again available, priced £54.00, giving you 4 Imperator Mecha for the price of 3!
Check the Mecha out on the CMG store