In my opinion, this is the most difficult achievement in the game (if you consider any of the achievements to be difficult at all) and it's much harder than the Xbox One version's.
In order for you to be able to unlock the
How Long Was That Runway? achievement, you must first complete all other race events and acquire all 10 cars. After that, you will gain access to the final race event called "Deliver The Cars". You must complete this race event in 1st place. There are other cars in this race but you don't have to necessarily beat them. The objective is to beat the Cargo Plane but you will end up beating the other racers (cars) anyways. Before you start this race event, click on the Difficulty option and use these
recommended settings:
Game Difficulty: Custom
Braking: ABS Off (ABS On for inexperienced drivers)
Steering: Normal
Traction Control: On
Shifting: Automatic
Driving Line: Full
Cosmetic Damage: Off
Rewind: On
Opponent Difficulty: Easy
After you have changed the Difficulty settings you can start the race event. In this race you are forced to use the 1970 Dodge Charger R/T and the handling of the car is terrible compared to the other cars in the game. Now because the handling isn't too good, you don't want to hold in the acceleration because the rear-end of the Charger will spin out of control. You'll want to brake early on the corners with your normal brakes, not the E-Brake. It's also best to not crash at all to avoid getting too far behind the Cargo Plane. If you happen to crash or if you mess up anywhere, then press and hold
to rewind. I didn't use rewinds at all and I probably should have because this achievement took me several attempts.
Notes:
One of my best suggestions is to turn off the Camera Motion Effects in the Options/Settings menu. I say this because I think it affects your driving.
Also, some people have an easier time with Braking turned to ABS Off and others have an easier time with Braking turned to ABS On. If you're an inexperienced driver, you may want to switch the Braking to ABS On. I
DO NOT recommend changing Braking to Assisted because it forces you to slow down on every turn and you'll end up too far behind the Cargo Plane.
Hopefully my solution has helped you.