BotCon really likes Tigatron, I guess.  The first year the convention was allowed to do pre-existing characters, back in 2001, they chose him and Arcee.  They did another Tigatron in 2006, in which they decided Tigatron wasn't actually a newborn protoform like all the others, but was actually a police officer who pratfalled himself into one of Axalon's stasis pods and some amnesia.  And here he is again in 2016, where we learn he's actually a really important Autobot from the end of the Great War, known and revered by both sides!  Weird nobody remembered this integral historical icon when he woke up later on prehistoric Earth, still being named Tigatron and wearing his old face on his chest.

But, again, let's not get me started.

2016 Tigatron takes a lot from 2001 Tigatron, in that the former is directly based on the latter.  This makes sense, as 2001 Tigatron was a Beast Wars Ravage redeco, so this one is a redeco of this year's Ravage, who himself is a remake of that old Beast Wars Ravage.  This time around, Tigatron's secondary color is teal instead of the icy blue he had before.  It's a slight color shift, similar to how this year's Ravage has that pretty steel blue instead of the original beige.  Otherwise, this is a color-for-color recreation of that original BotCon toy design, down to the primary blue tummy deco.  He really feels like he belongs later in the timeframe, after that original toy, since this is such a direct upgrade of it.  There's even a bonus Wreckers symbol sticker you can put on his right arm, included in the convention's Magnaboss sticker set.  

Of course, this time he transforms into a car.  And a leg.  And an arm.  

Same as with Ravage, since they're just redecoes of each other, Tigatron has the whole "missing back half of the skull" deal.  Just... try to keep forgetting to look at him from the sides.

Try to forget a lot of things.