Rockstar has said that the South Central DLC for Midnight Club: Los Angeles will launch on 12th March.
Available on Xbox 360 and PS3, the content expands the game-map by roughly a third and is completely free.
There's also a premium South Central Content Pack that has plenty of new competitions, races, cars and music to enjoy. A US press release cites a price of USD 9.99, which we suppose would equate to 800 Microsoft Points (GBP 6.80 / EUR 9.60).
The South Central content was accidentally leaked earlier this month; a blooper Microsoft later apologised for.
Fast-eyed and fast-fingered observers noticed a couple of premium vehicle packs added simultaneously, although there's no word on them here. All of the leaked South Central content was removed.