Here is the revised version.

Mangled Metal

Weight: 200kg.
Shape: Cylinder ala Puck.
Colour: Green.
Dimensions: 120 X 120 X 23.
Power: 2 X LEM-130's @ 36v powered by several NiCad's, shock mounted.
Wheels: 4 X Aluminum Tyres with Urethane Rubber.
Armour: 3.5mm Hardox for Top and Bottom, 6mm Hardox for weapon.
GC: 6mm Everywhere.
Top Speed: 10 mph.
Weapon: 59kg Ring Spinner powered by a LEM-200, with 3 X 3kg Pussycat style blades and spinning at 1300RPM. Shock-Mounted to protect itself from its own blows.
Srimech: Invertible.
Strengths: Once it hits you, YOU will be mangled metal. Flipping it does nothing. At all.
Weaknesses: Slow and Sluggish.

Mind-Bender

Weight: 250kg.
Shape: Cone with top 20cm cut off... kinda like Megabyte
Colour: Swirl of black and white ala Hypnodisc.
Dimensions: 120 X 120 X 27.
Power: 2 X LEM-130's @ 36v, powered by several NiCad Batteries, Shock-Mounted.
Wheels: 4 X Aluminum Wheels with Asmaprene Urethane Rubber on it.
Armour: 4mm Grade 5 Titanium for the robot armour, 5mm Hardox for the weapon.
GC: 5mm Everywhere.
Top Speed: Roughly 8 mph.
Weapon: Get this. A 59kg Whyachi style Spinning Cage powered by a LEM-200. This spins at 1500RPM, and has 3 X 1kg hardox claws to wreak havoc. Heavily Shock-Mounted, as well. Can you say, OUCH?!
Srimech: None! :O But I'd like to see you get past his cage spinner.
Strengths: Destruction to the MAX!
Weaknesses: Flip it, and it'll be gone.

Head Smash!

Weight: 300kg.
Shape: Think a box, with a Dantomkia-style front wedge, and a rounded back.
Colour: Red, with an image of Decapitated Head on Top.
Dimensions: 125 X 96.8 X 32.
Power: 2 X E-Tek's @ 48v, powered by several NiCad Batteries.
Wheels: 4 X Urethane Rubber Tyres with Hardox Hubs.
Armour: 6.5mm Hardox, with 12mm Grade 5 Titanium for the Base.
GC: 0mm for the front, 6mm for anywhere else.
Top Speed: 19 mph.
Weapon: A mega-powerful rack and pinion hammer. The entire hammer is made of hardox, and the hammerhead is shaped like the Judge's hammer. Powered by a couple of CO2 tanks @ 500PSI, and is able to obliterate aluminum, terrorize titanium, penetrate weak hardox. But who knows, it might even knock something loose inside of the victim.
Srimech: Hammer, duh.
Strengths: The Hammer, Pushing Power is really good, too.
Weaknesses: So-So Turning.

Lancelot

Weight: 400kg
Shape: Invertible Box ala Tornado (Series 4)
Colour: Metallic Silver
Dimensions: 130 X 100 X 27
Power: 2 X E-Tek's @ 48v, powered by a couple of NiCad's, shock mounted
Tracks: Stainless Steel Tracks, with polyurethane rubber on it.
GC: 5mm Everywhere
Armour: 6mm Hardox Everywhere except for underbelly which is 15mm Titanium
Top Speed: 20 mph
Weapon: A set of Horizontal Claws powered by a Vivoil pump running off a S28-400, and tungsten-coated to induce some severe damage.
Srimech: None, but Invertible; side cones stop it from getting beached
Strengths: Very powerful Weapon. Pushing power is also good
Weaknesses: So-so turning?

Gorgon

Weight: 500kg
Shape: Rollover Shape with low front wedge and fangs, and with a Medusa's head painted on each side.
Colour: Camouflage tone of Chartreuse, Khaki, and Lime Green. It's so damn disgusting, you could almost puke...
Dimensions: 120 X 100 X 27
Power: 2 X E-Tek's @ 48v, powered by many NiCad's, shock-mounted
Wheels: 4 X Vulkalon Coated Aluminium Tyres
GC: 6mm Everywhere except the front, which is 0mm
Armour: 5mm Hardox
Top Speed: 15 mph
Weapon: Crushing fangs made of hardox, and powered by an M-Mac M40 Actuator. The front wedge also has some barbs to trap other robots.
Srimech: It rolls over onto its wheels every time it gets flipped over.
Strengths: Extremely good weapon, can chew through almost anything (except for thick hardox)
Weaknesses: ...

King Arthur

Weight: 750kg
Shape: Box with a front Growler-like jaw, and a crown on top.
Colour: Gold for the top and bottom, Silver for the front and back and Bronze for the sides
Dimensions: 130 X 100 X 45
Power: 2 X LEM-200's @ 60v, powered by several NiCads.
Tracks: Vulkalon Coated Titanium Tracks
GC: 0mm on the front, 5mm anywhere else
Armour: 7mm Hardox Monocoque
Top Speed: 10 mph
Weapon: On the back, there is a huge 32kg vertical flywheel that is powered by a LEM-200, and spinning at 6000RPM. On the front, there is a set of vertical jaws (Think Growler, but much more powerful), powered by a Vivoil Pump running off a S28-400. It has 12 tungsten-tipped teeth inside the jaws to cause maximum damage.
Srimech: None!
Strengths: Indestructible.
Weaknesses: No Srimech! :O