Test Drive Unlimited 2

All Club v Club challanges etc have to be 4 players minimum. It also has to be a minimum of 2 players representing each club (4 players in total)
Chose a speed challange in Hawaii as they are really quick !
Take it in turns for each club to win, It should pop in no time !
Whilst one club is going for the win, the other club can go on a cruise and discover new roads... Then swap over...
Scoring for each club during the race is based on the average score of all club members taking part in that specific race.

***SERVER UPDATE: SOME TDU2 SERVERS ARE DOWN. As of around August 2014, it's been impossible to join/invite other players from the in-game menus and Club vs. Club matches are NOT working either. However, club invites and joining clubs are still working as of January 2015.***

This Club vs. Club achievement should only take 4 people about 30-35 minutes to get once you get going! However, if you are want to max the Social Club stat for Club vs. Club matches won, then figure on about 50 minutes at least. You need 30 Club vs. Club wins for the achievement, but 50 Club vs. Club wins for the Social Club stats.

On to the boosting method, with big thanks to lightsup55 for tips.

You need to have two clubs, with at least two of the boosters in each. Join/make/create clubs until you've got a minimum of two boosters in each. Also note, you can have up to 4 boosters in one club winning at one time, as long as the other club has a minimum of 2 boosters present. 2v2, 3v2, 3v3, 4v2, etc, Just NOT 2v1, 4v1.

When you're all ready, have both clubs go to the club 'bar', hit "A", and you should see "Create match" or "Join Match". Choose "Create". You now should see an option for "Inner Club" or "Club vs Club" matches. Choose Club vs Club....

If you are both searching at the same time, you should find each other quite quickly. I recommend choosing the same type of race though(Speedtrap was ours), highlight the other club level, and choose a particular class if you like(we didn't). you should be able to find each other quickly this way(for us, it would take a few seconds when we searched around the same time.

Now, the easy part! It'll load up a race for you. Decide which team is losing, and the host hits "Y" to start the race as soon as everyone shows a green dot. A soon as the race starts, the losing team hits "Start", then "Give up". The beauty of this method is it will bring you back to the race lobby, and you can almost immediately start another race!! The winning team just needs to hit "A" a few times until they are back in the lobby and the host can start it again. You apparently can have up to 4 winners at a time, as long as you have 2 losers.

And.... repeat 30 times for an achievement. Then 20 more times for Social Club stats! Then 50 more times for the other team to do it too! :-) And you're done!! Each race sequence should take from about 20-30 seconds. Of course... if the others dont mind, you can show off yours cars(change cars by hitting "A" when looking at your car), and see how far you can get before the other team quits. Makes it not quite so boring, just make sure you choose cars FAST, otherwise you're slowing it down a lot.

Enjoy!