Car Surf on a Comet While it Explodes
Saints Row: Gat Out of Hell GNARLY WAVE
To surf a Comet car you need to stand on the roof and wait until you see the surf button pop up. Now you need to balance as long as it takes for the comet to destroy itself.
Now the hard part is to get on one before it goes crazy and drives away. The easiest way i found is to walk into oncoming traffic and make the comet stop directly in front of you. Tap the jump button, but don’t jump forward because the car will start driving most of the time and you will miss it.