Microsoft and Turn 10’s latest racing sim, Forza Motorsport 4, has shot straight to the top of Chart Track’s UK Software Sales listing this week to claim No. 1 ahead of previous chart bully, FIFA 12, by a little over 700 units.

Forza 4 simultaneously enjoys the biggest ever launch week for a racing game on Xbox 360 in the UK, and heads up a massive list of seven new entries to this week’s Top Twenty chart.

Sales of FIFA 12 are down 62 percent this week, but the game’s chart performance is good enough to help it position itself at No. 2, down from No. 1 last week. Just Dance 3 debuts at No. 3 as RAGE (sales down 38%) shifts down two places to No. 4 to make way for the newcomers.

Pro Evolution Soccer 2012 appears at No. 5 during its first week on sale, and Gears of War 3 steps down to No. 6 from No. 4 while commiserating with RAGE. Dark Souls (sales down 58%) is only down by four spots to No. 7 while Zumba Fitness (sales down 12%) is shoved down two places to No. 8.

F1 2011 (sales down 42%) is also down by four positions to No. 9 as new UK chart entry, Jonah Lomu Rugby Challenge, shows up at No. 10.

What other new games made their way into the Top Twenty Chart this week? There were a few more, with Ace Combat: Assault Horizon, Dead Rising 2: Off the Record and Skylanders: Spyro’s Adventure all debuting – find out where they placed in the full Top Twenty listing below:

• 1.) Forza MotorSport 4 (Microsoft)
• 2.) FIFA 12 (EA)
• 3.) Just Dance 3 (Ubisoft)
• 4.) RAGE (id Software)
• 5.) PES 2012 (Konami)
• 6.) Gears of War 3 (Epic Games)
• 7.) Dark Souls (Namco Bandai Games)
• 8.) Zumba Fitness (505 Games)
• 9.) F1 2011 (Codemasters)
• 10.) Jonah Lomu Rugby Challenge (Alternative)
• 11.) Deus Ex: Human Revolution (Square Enix)
• 12.) Ace Combat: Assault Horizon (Namco Bandai)
• 13.) LEGO Pirates of the Caribbean (Disney Interactive Studios)
• 14.) Dead Rising 2: Off the Record (Capcom)
• 15.) Dead Island (Koch Media)
• 16.) Skylanders: Spyro’s Adventure (Activision)
• 17.) Resistance 3 (SCE)
• 18.) Driver: San Francisco (Ubisoft)
• 19.) Mario Kart Wii (Nintendo)
• 20.) Rugby World Cup 2011 (505 Games)

You can read over last week’s UK Software Sales Chart over here.

Source: Chart Track