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