As it is an online game it doesn't have a rating, due to it being entirely online, with no offline gameplay component.
It is rated E10+
Need for Speed World - 2010 VG is rated/received certificates of: USA:E
Need for speed world is only for pc
No, i don't think so, need for speed world is just for fun
Need for Speed Shift - 2009 VG is rated/received certificates of: Australia:G
Need for Speed ProStreet - 2007 VG is rated/received certificates of: Australia:G
Need for Speed Carbon - 2006 VG is rated/received certificates of: Australia:G
Need for Speed II - 1997 VG is rated/received certificates of: Australia:G USA:E
Need for speed world is a free to play game with purchasable in game content.
Need for Speed Porsche Unleashed - 2000 VG is rated/received certificates of: Australia:G
Need for Speed Underground - 2003 VG is rated/received certificates of: Australia:G Brazil:Livre USA:E
Most need for speed games are rated T for Teen, suggestion, lie and say yr 18!