Legal action lodged over the SA government’s plans for a MotoGP circuit

In short:

Federal court legal action has been lodged over the SA government's plans for a MotoGP circuit in Adelaide CBD.

Designs for the $96 million street circuit, which will require the removal of nearly 400 trees from the eastern parklands, were released in August.

What's next?

The state's attorney-general has acknowledged the application and said the government would defend its position.