Ill go with:

NAME: Crimson Thunder
SHAPE: Box with wedge at front and inverted wedge at back.
COLOUR: Deep Red.
WEIGHT: Around 100kg
DIMENSIONS: L:110cm W:65cm H:23cm
SPEED: 30mph
TURNING CIRCLE:0mm
ARMOUR: 5mm hardox
GROUND CLEARANCE: 0mm at the front, 0mm with hinged skirts at sides, 20mm at sides under the skirts and at back. (Well, technically 23cm at the very back, thanks to the inverted wedge.
MOVEMENT: 4 Wheels with Vulkanon tires and aluminium hubs powered by 4 36v LEM130s Powered by 6 NiCad battlepacks.
WEAPONS: None but the force.
SCRIMECH: Invertable.

Name: Sithis
Shape: Cylinder
Colour: Black with red teeth
Weight: 100kgs
Dimensions: L:90cm W:90cm, H:30cm
Speed: 15mph
Turning Circle: 0cm
Armour: 8mm Titanium all around.
Ground Clearance: 7mm
Movement: 4 invertable wheels with Vulkanon treads, powered by a couple of LEM130s at 36V with 3NiCad battlepacks
Weapons: Ring spinner powered by an etek running at 48volts, which can deal out around 80kjs of power. Two five kilo hardox teeth, curved to rip armour. The whole ring is about 20kg.
Scrimech: Invertible.