In some continuities, like the Unicron Trilogy, his alternate modes included Cybertronian versions of a tank, jet, racer, and even a robotic T-rex. He could also turn into a dragon, spaceship, and various assault vehicles. In the movies, he's also been a Cybertronian tank (a flying one, no less), jet, and truck.
Megatron is the leader of the Decepticons, and most of his fellow Transformers are jets. Ironically Megatron doesn't transform into a jet, he transforms into a handgun. What's also ironic is that the leader of a group of transforming planes can't be brought onto a plane.
Ironhide, Megatron and Optimus seem to be about the same age, so I'd say they're 50-55ish. Seekers (SS, TC, SW) about 30-32 (old enough to know better, young enough to screw over.) Hot Rod about 18-20, and smart, but lacks logic.
During the Golden Age on Cybertron, Megatron was originally a mining bot designated D-16 before naming himself Megatronus, after the Prime of the same name. Megatronus was a gladiator in the pits of Kaon, who grew ambitious and saw corruption within the caste system and sought to put an end to it, with his own rule.
In Transformers Animated, Megatron TOWERED over Optimus. In Transformers Prime, Megatron was taller by only a few inches, until Optimus got his upgrade in season 3. If anything, it makes sense for him to be so big since he was an extremely well known/feared gladiator in Kaon anyway.
It shouldn't come as a surprise when one names Optimus the strongest Autobot. His battles are too numerous to count. He's defeated Megatron on multiple occasions and has taken down foes even Sentinel would have no chance against.
Alpha Trion is an Autobot from the Transformers Animated continuity family. "I'm Alpha Trion!" Billions of stellar cycles before the Decepticon movement had even been conceived, Alpha Trion fought in countless Cybertronian battles. He is, perhaps, the oldest Transformer anybody knows.
The last theory is that Autobots prefer to not fly because it consumes lots of energy, explaining why the Decepticons are so obssesed to obtain it. Things are different in other continuities, in most of them flight is mainly resctricted for those whose alternate form can fly or have flight as special ability.
Optimus is a mentor and father-figure to Bumblebee. They have a history together during the war on Cybertron and on Earth. They continued their relationship from Transformers: Prime to Transformers: Robots in Disguise.
Transformers Prime Bumblebee's Twin Sister - kathrynjacob - Wattpad. We all know bumblebee but not everyone knows he has a sister, let alone a twin. Both siblings have been separated for the longest time and Scarlet has been in a pod floating around space.
Saay, that shield looks familiar. Before the dawn of time, Order and Chaos existed within an extra-dimensional entity known as The One. To explore the fledgling universe, he created the astral being known as Unicron, and then subdivided him, creating his twin, Primus.
Each of the five Galvatrons built by KSI exhibited tendencies to shift into a Megatron-like appearance. Before the deployment of the fifth and final Galvatron body, Megatron transferred his mind into the body, effectively reviving himself into a new body.
There are 2 versions to it: first is that, it's their nature law, that if you are a Prime no one can defeat you unless he(it)'s another Prime. The second one is just a prophecy that The Fallen can be beaten only by a Prime.