Hi Guys I have created a Track that will pop you this Achievement along with the other Length Achievements.
There is a feature within the game called "Frontier Workshop" with user creations.
Simple Go to Frontier Workshop, Coasters and Search
"Ride Of Your Life" You'll See my GT under it (FR0D0 86) Now simple Start up a Sandbox Game and build the blue print and Test Ride it. I advise butting the game in Fastest speed (Hold
and press
)wait a few minutes an boom the Achievement will be yours.
You'll receive these Achievements also: "Don't Stop me Now 10gs" "Coasting Along 5gs"
If you Down vote please let me know why and I'll improve this guide Happy Hunting.