Race The Sun

The quickest way I found to get this achievement is to simply take note of a relatively accessible portal (they unlock after reaching level 7) and just travel through it on each new life until the achievement pops. This shouldn't take any time at all if you just crash and repeat 8 times.
But, I do suggest to use these to get other achievements such as the 500k and higher points or the In-air tris, as the portal worlds tend to include a lot more tris than normal regions do.
As well as this, make sure to bare in mind that the world changes every 24 hours. If you manage to find a nicely accessible portal, you are better off using it for all 8 runs, as the day after may have barely any portals at all.

Hey everyone, just a quick video explaining these achievements. Biggest things are:
-Need to be level 7 to find the portals
-Will always spawn in the same spot for that day
-New World every 24 hours
-Can be the same portal 8 times

Hope the video helps!