TFW2005 has uncovered from Hasbro's Transformers site that Soundwave is indeed the Mercedes Benz SLS AMG. There have also been some more spoilers uncovered about Shockwave. Although TFW2005 makes you believe they are massive spoilers, they really aren't. You can uncover the same info about Shockwave from the Rising Storm comics. There is also a new Autobot called Steeljaw, who is the Wreckers' pet.