As this game doesn't offer bots in multiplayer mode, playing against one or two of your friends could be boring. To prevent this, you may join the active multiplayer commnunity of Flatout 4 Players

http://psteamcommunity.yuanyoumao.com/groups/flatout-4-active-multiplayer

Just join the group and take part on active events or randomly invite people from the group to play with you.

As this guide is very basic, please honour the idea of an active multiplayer base and be part of our community. Join us today and race against other human players! Give this very basic guide a good rating so more people can find a way to play online with more than 1 or 2 people. This would be kinda nice!