I posted this at the Allspark just before it went down, but I thought some here might find it interesting, too. I was working on a fic using molds from the Unicron Trilogy, and one of the story elements I wanted to use was the size disparity between the typical autobot and the typical decepticon. To get an idea of what the sizes would actually be, I found reference dimensions for the real world inspiration for the alt modes, and backed out the estimated robot mode height based on the scale. I don't own many of the toys listed and had to rely mostly on online photos, so there are potentially some pretty large error bars on the estimated heights, but it did give me a rough idea of the relative heights of the different bots. Autobots Red Alert [Cybertron] - 12 ft - Dodge Magnum Downshift [Cybertron] - 12.5 ft - 1971 Plymouth Hemi Barracuda Crosswise [Cybertron] - 13 ft - Bugatti Veyron Hot Shot [Cybertron] - 14.5 ft - Chrysler ME 412 Landmine [Cybertron] - 20 ft - John Deere 6 cu. yd 4WD Loader (Loose) Armorhide [Cybertron] - 25 ft - Volvo FH CD Hot Shot [Cybertron] - 18 ft - M-706 CD Scattorshot [Cybertron] - 30 ft - M1A1 Chassis CD Red Alert [Cybertron] - 30 ft - Scud Missile (Loose) Evac - 35 ft - HH-65A Dolphin Skyshadow [Energon] - 60 ft - A-10 Storm Jet [Energon] - 80 ft - Scaled to Skyshadow Superion Maximus [Energon] - 90 ft - Scaled to Skyshadow Jetfire [Cybertron] - 165 ft - C-5 (Loose) Wing Saber [Cybertron] - 50 ft - A-10 Optimus Prime (Super Mode) [Cybertron] - 60 ft - Scaled to Wing Saber Decepticons Hardtop [Cybertron] - 13 ft - Chenowth Fast Attack Vehicle Kickback [Energon] - 32 ft - German Gepard Barricade [Energon] - 45 ft - Scaled to Kickback Bruticus Maximus [Energon] - 55 ft - Scaled to Kickback, assuming 4 identical limbs Thundercracker [Cybertron] - 50 ft - Su-35 Flanker Tidal Wave [Armada] - 2000 ft - USS Nimitz class aircraft carrier After doing this, there were a few things that surprised me. I knew that whenever you include aircraft, it throws off the scale, but I didn't realize that it would make Thundercraker almost the same size as Bruticus. Also, its interesting that the Cybertron Defense team toys are acually pretty close to being in scale with each other; there may be some other examples of this, but thats something that is hard to tell without having the toys in hand. If anyone has any better references for the alt modes, or a better idea on the height on any of them (listed or not), I could use the input. Feedback or criticism is always welcome.