Rule of these films: if you’re a truck, that makes you a tough-ass warrior (most of the time at least). But there is enough variety in these films (sportscars, military vehicles, construction vehicles, racecars, and a Hummer) towards the Transformers. My vote goes to Megatron’s tank truck. It’s G1 Motormaster, RID Scourge and every Nemesis Prime all wrapped up in one mean road machine, the perfect challenger to Optimus’ Peterbilt. It’s an utter shame that vehicle was not seen more often, especially in an action scene. Runner-up goes to Ironhide's pick-up truck, for being tough as well as fast, which fits Ironhide well.