A heavy machine is a huge arm and a movie that twists the car half in half
It is a car with a solid mass of metal, but when you use a heavy machine it seems like you can twist as if it were made of paper.
Details are as below.
The scene that twists with two heavy machines is around 1 minute 27 seconds.
YouTube - shredder vs bosses car
This heavy machine handles heated iron and it seems that it is possible to lift up to 80 tons.
If it is a shovel car, it can skewer the car and carry it.
YouTube - dont mess with the boss