Rich, Marauder is exactly like what you describe, except a few things I should have said....

Marauder has 5mm thick aluminium armour, uses 18v drills for drive, has a 70mm bore 50mm stroke Full Pressure CO2 flipper that has launched 13.8kg robots over 5ft into the air.... I know, because it was my robot flying...

2EZs blade is actually angled. If you look on http://www.buildersdb.comwww.buildersdb.com youll find it under the lightweight section, with photos and whatnot.

Intensity will stay the same.

Name: The Ultimate Wedge
Motivation: 6WD
Shape: A wedge shape like Voltronic
Speed: 35MPH
Weight: 100kg
Height: 250mm
Length: 800mm
Width: 600mm
Weapon: A High Pressure top hinged flipper powered by a 80mm bore with 3 20mm Burket valves feed from a 3L buffer tank, using 2.2L of Liquid CO2. Well over 500kg of flipping force. This is not designed to be a big powerful flipper, but is used to launch the opponents over the arena wall or to momentarily disable them so they can be rammed again! Flipper sits on top of the armour, meaning when the flipper fires, the robot is still armoured everywhere.
Chassis/Armour: 4mm Hardox 400
Drive: 2 x LEMCO 200 motors! Bigger then the LEMCO 130€™s and they put out more HP!
Batteries: 160 x 3600mAh NICD to produce 48v
Notes: The robot is invertible. Gyro-stabalised and has an active traction control system build from a pair of 18X picaxe chips and some custom software and sensors. This will help maintain maximum control and handling at high speeds.

Advantages: The SPEED! The Pushability! The Strength! Flipping good
Disadvantages: Having to keep your opponent in the arena long enough to have fun