Its actually needed to have a x3 Multiplier for the Cart to go at max speed. c:
Did you know when you scope in as the sniper, the longer you're scoped in, the lighter your dot gets?
Did you know that the Stab in the Medic's Ubercharge Taunt gives 25% Ubercharge, while the pull gives 75%?
Did you know that you don't have to Rocket Jump to get the crit to apply on your Market Gardener?
Did you know when the Pyro reflects a rocket from the Rocket Jumper in order to Rocket Jump his/herself, the Pyro will still take damage from it?
Did you know that the Cart in pl_frontier_final will kill you if you stand infront of it as it is moving?
Did you know on cp_gravelpit, at the A Point Spawn tunnel on the left hand side when you are on RED, there is a part on the wall that you may jump on to get inside of the tunnel?
Did you know when you move off of a surface when you taunt or you are knocked up by an explosive, your taunt will still go on, but you may still attack?
Did you know that the Cleaner's Carbine has the same sound as the Silenced M4A1 in CS:S?
Did you know that in the earlier versions of cp_gullywash, there was water right below the last point?
Did you know that when the Scout dies, Archimedes comes out of him?
Did you know that the Pyro used to be able to kill enemy players in setup time on cp_dustbowl with his/her Rainblower taunt?
Did you know that you may use stock weapons in crafting recipes if they are renamed?
Did you know that TF2 came into the ESEA scene in Season 2?
Did you know that you may use a Wrangled Mini-Sentry to get yourself to higher locations?
Did you know that if you stand on top of the rocket on Doomsday when its about to lift-off, you will die?
Did you know that the Jarate may still have a crit glow at times when you throw it, but it will do nothing special?
Did you know that the Pyro is still engulfed in fire for about 1 second after getting burned, so another Pyro may still get the crit kill on that Pyro with the Axtinguisher's ability to do so?
Did you know that when an enemy player is in the air, a Heavy may keep the player up there if his minigun is shooting right under the airborne target, much like the Lightning Gun in the QUAKE games?
Did you know that the Scout, Demoman, and Soldier are the three classes that may cap points the fastest at a x2 rate?
Did you know that the Red-Tape Recorder used to give a Level 2 Sentry Gun the HP of a Wrangled Level 3 Sentry Gun if the Sapper was taken off when it was downgraded?
Did you know that the Huntsman and the Crusader's Crossbow may take out Projectiles if the arrow is aimed at the center of said Projectile?
Did you know that from the people who equip the Aperture Labs Hard Hat, the class it is mostly worn on is the Engineer?
That's all the neat facts I know for now. ^^