I'd be a bucketwheel excavator, Bagger 260 to be precise which would make me a 8000 ton behemoth and only the second or third largest vehicle ever made, Bagger 288 and its brothers would be bigger at 13.500 tons
The 260 is 195m long 67m high 31m wide
http://www.youtube.com/watch?v=frep4j53nvg
^^ Just moving along...
http://www.youtube.com/watch?v=aaZz18kr224&feature=related
^^ Sitting idle..
http://www.youtube.com/watch?v=oWlcqdPJEPg&feature=related
^^ bagger 288
The 260 is 195m long 67m high 31m wide
http://www.youtube.com/watch?v=frep4j53nvg
^^ Just moving along...
http://www.youtube.com/watch?v=aaZz18kr224&feature=related
^^ Sitting idle..
http://www.youtube.com/watch?v=oWlcqdPJEPg&feature=related
^^ bagger 288