Here is the full list of all 46 American Fugitive achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Find every hidden stash.
Run over 10 civilians in a hearse in 60 seconds.
Steal 200 cars.
Hold up 50 businesses.
Pick up each type of flyer.
Kill someone with something that you are towing.
Tow a flaming car.
Ride a train around a loop of the track.
Land a car on the roof of the bank in Twin Lakes.
Complete every Time Trial.
Get Gold on every Time Trial.
Drive at over 100 mph in a flaming car.
Get Gold on 10 Time Trials.
Knock 5 people out with a toilet brush in 60 seconds.
Drop a garbage bag at the dump.
Complete every vehicle jump.
Tow a vehicle while it is occupied.
Find and sell all 20 paintings.
Earn $50,000 in lifetime earnings.
Complete the story.
Complete 'Two Wrongs Make A Right.'
Complete 'A Little Less Loyal.'
Reach Ridge Plains.
Complete 'Supplies And Demand.'
Dispose of a body in a river or lake.
Jump a distance of 70 meters.
Cause 10 deaths in 30 seconds.
Consume 10 pieces of wild food.
Complete 'Rebel Without Wheels.'
Complete 'White Lines.'
Reach Port Providence.
Complete 'Foul Play.'
Reach a top speed of 160 mph.
Fence more than $1000 worth of goods in one go.
Complete 'The Gift Horse.'
Complete 'A Quiet Moment.'
Break into a house stealthily, steal $100 of goods, and make a clean getaway.
Get Gold on a Time Trial without taking any vehicle damage.
Complete a Time Trial.
Get Gold on a Time Trial.
Escape from the prison.