Working with Minecart Blocks

I want know how can i work with minecart blocks. How can i turn blocks around and how can i set minecart blocks. It is a block or falling sand? Thanks.

 

Can you elaborate please?

 

Minecarts are not blocks. and not implemented by pocket mine. Its not sand and not a block

 

Spawn a minecart then set the

PHP:

Entity::DATA_MINECART_DISPLAY_BLOCK

flag with the block runtime id, which is an int
Then set

PHP:

Entity::DATA_MINECART_HAS_DISPLAY

flag to 1, it is a byte
To turn it just change the yaw of the minecart