Full list of all 62 Forza Motorsport 7 achievements worth 1,000 gamerscore. It takes around 120-150 hours to unlock all of the achievements on Xbox One.
Collected 300 cars
Completed all Showcase Events in the Forza Driver's Cup
Fully Completed the Breakout Championship
Unlock 100 Driver Gear suits
Fully Completed the Seeker Championship
Completed the Forza Driver's Cup
Completed the Masters Championship
Completed 50 laps at night
Own the 2018 Porsche 911 GT2 RS
Sold a car in the Auction House
Collected 100 cars
Bought a car in the Auction House
Unlock 50 Driver Gear suits
Completed the Domination Championship
Reached Car Collector Tier 8
Completed the Evolution Championship
Reached Car Collector Tier 7
Equipped and Fully Used 50 Mods
Entered Test Drive in any car
Shared one of your Tunes
Shared one of your Paints
Created your own weather forecast in Freeplay
Shared a Replay
Drove faster than 250 mph in any car
Unlock 25 Driver Gear suits
Completed the Breakout Championship
Reached Car Collector Tier 6
Earned 500,000 credits from Mods
Reached Car Collector Tier 5
Completed a race in every Rain Weather Scenario
Reached Car Collector Tier 4
Acquired 50 Mods
Unlock 10 Driver Gear suits
Completed the Seeker Championship
Reached Car Collector Tier 3
Shared a Photo
Used your first Mod
Finished an event and complete all challenges with 3 Legendary Mods
Completed your first race
Reached Car Collector Tier 2
Collect 500 cars
Collect 700 cars
Fully Complete the Evolution Championship
Fully Complete the Domination Championship
Fully Complete the Masters Championship
Fully Complete the Forza Driver's Cup Championship
Complete a race in the 1998 Porsche 911 GT1 Strassenversion on Maple Valley
Complete a race in the 2014 Ferrari FXX K on Mugello
Complete a race in the 2017 Nissan GT-R on Suzuka
Complete a race with every car from Porsche
Complete the Spa-Francorchamps 100 showcase event with Extra Long Race Length enabled.
Earn 50,000 credits from the community using your Design
Earn 50,000 credits from the community using your Tune
Beat 10 Rivals while running with no Assists
Win a race with Unbeatable Drivatar Difficulty
Complete 50 laps at night in Multiplayer
Complete 50 laps in the rain in Multiplayer
Complete 100 laps in Multiplayer
Complete 300 laps in Multiplayer
Complete a race on every track in Multiplayer
Win a race with no Assists turned on in a Multiplayer race
Start last and finish first in a Multiplayer race with 24 cars