Simon, known for building BIG robots was at AFOLCON in Manchester, where he met Eric, who's also known for building massive models. the two got a drink and they decided to make a bet:
Who would be the first person to make a vehicle that could carry 120 pounds.(60 KG)?
It looks like Simon won! Congratulations !
On his website he explains more on how he build it.
Just look at this awesome video. This was made possible with the help of Rotacaster omni directional wheels and LEGO MINDSTORMS.
Don't we just love massive robots....