Full list of all 58 Forza Motorsport 4 achievements worth 1,250 gamerscore. It takes around 150-200 hours to unlock all of the achievements in the base game.
The base game contains 48 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 10 achievements worth 250 Gamerscore.
Complete the eighth year of Season Play.
Level 40 in Career
Complete the seventh year of Season Play.
Complete the sixth year of Season Play.
Level 30 in Career
Complete the fifth year of Season Play.
Level 20 in Career
Complete the fourth year of Season Play.
Fully explore any car in Autovista.
Use Kinect to drive any car in Free Play.
Import a file from Forza Motorsport 3.
Earn a perfect Speed score.
Complete the third year of Season Play.
Reach 88 mph in a DeLorean.
Create a car tuning file for your car.
Create a paint job or vinyl group for your car.
Level 10 in Career
Earn a perfect Drafting score.
Complete the second year of Season Play.
Create a custom playercard with badges and titles.
Complete the first year of Season Play.
Knock down a gold bowling pin in Car Bowling.
Earn a perfect Pass score.
Level 1 in Career
Earn a perfect Turn score.
Complete the very first race in the game.
Reach Driver Level 50 in Career mode.
Finish 1st in every single race in the Event List in Career play mode.
Finish a race on every race track in Forza Motorsport 4.
Be the winning bidder on any "unicorn" car in the Auction House.
Upload a movie to Forzamotorsport.net.
Sell a car tuning, paint job, or vinyl group from your storefront.
Complete the ninth year of Season Play.
Complete the tenth year of Season Play.
Reach 240 mph in any car.
Take a photo of any car in every Home Space.
Complete a lap around the TopGear Test Track while driving a KIA cee'd.
Create or join a Car Club.
Share a car in your garage with your Car Club.
Complete 10 Autocross events without hitting gate cones.
Visit the Message Center on at least five unique days.
Race and defeat an opponent in Rivals mode.
Beat a Ferrari 330 P4 in any race while driving a Ford GT40 Mark II.
Earn a perfect Drift score.
Own the five most expensive cars in the game (not including DLC).
Get any Car Manufacturer to Affinity level 50.
Post a time in every Rivals mode event.
Own every Ferrari included on Disc 1.
Win online at the Nürburgring Nordschleife Full track in the 2012 Porsche 911 GT2 RS.
Win online in the 2011 Porsche #45 Flying Lizard 911 GT3-RSR (997).
Complete 5 online circuit races in the 2010 Porsche 911 Sport Classic.
Complete 3 online circuit races in the 2010 Porsche Panamera Turbo.
Earn 30,000CR in the 2008 Porsche #7 Penske Racing RS Spyder Evo.
Complete 3 online circuit races in the 2007 Porsche 911 GT3 RS (997).
Earn 30,000CR in the 2007 Porsche 911 Turbo (997).
Win online in the 2003 Porsche Carrera GT.
Complete 5 online circuit races in the 1982 Porsche 911 Turbo 3.3.
Win online in the 1973 Porsche 911 Carrera RS.