The “Eject Button” Jump Challenge in Need for Speed Payback is one of the hardest/best jumps and requires a car that is made for jumping and some practice and luck with the ramp.
I used the Porsche Panamera Turbo with the Offroad build and was going mostly for jump speed cards. These will increase your airtime and you should get it above 9 or even close to 10.
The “Eject Button” Jump is especially difficult because you have to hit top speed while going against traffic and of that, you need to squeeze through a narrow spot to even hit the ramp.
This will take some practice and in the end some luck to complete.
Need for Speed Payback (Youtube Playlists)