When I used to watch the 1st series of robot wars I always planned to emulate ‘Roadblock’ as its simple shape and mechanics seemed easiset for me to recreate at home. Since I was in school then, that never really took off but now I have the money and equipment to make an ant-weight hommage to ‘Roadblock’ for the BEEES robot wars.
Here is a link to the wiki where you can find out about ‘Roadblock’s various wins.