Movie/G1 Prime Hybrid.

I used the Voyager Toy for reference on the legs; the rest was designed by me.  Go me.  There's a short video of the transformation at this link.

Alt mode, based on a Peterbilt 362 sleeper cab.  From the mid eighties.  You know, when everything was cool.

A dynamic pose, ready to throw down.

Here's a more standard straight up-and-down pose.  His smoke-stacks rotate 180 degrees to form his cannons.  And while I don't have a render of it, a blade can pop out from each arm as well.  Because Bonecrusher hates Primes with swords.

A composite shot from a scene of the movie, to show reflections and what-not.  Notice the scratches on his plating where it rubs together during transformation in the last two images.