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