The Hadean uses handmade forged carbon whereas the Carbon GTR uses the layering technique. 

Forged carbon takes chards of carbon fibre, mixes it with resin and compresses the material into a mould. The benefits are a very light and strong deck. The complex forged technique allows the deck to be stronger in multiple directions as the weave interlocks more securely. 

You can see forged carbon in some of the best cars in the world!