What tool can be used to cut giant pieces of metal off?

Drag it on some dirt and use an oxy...

I used a sawzall and the Milwakee ax metal cutting blades they got dull fast and it got expensive. I found a grinder worked better. I have a 12" electric hand held cut-off saw with a metal cutting blade it cut faster that the hacksaw and the wheel lasted allmost the whole job. I was cutting up an old Chevy one ton pick up frame. I would recommend one of the 9" grinders with a metal cutting wheel. You can also use a no 77 skill saw with a metal cutting blade.