[Power Surge]

I've had the billboards on my car for over 8k miles.

Only "bad" points I've experianced... They flat spot when they've sat. That goes away in a few miles. They leak air through the porous sidewalls. That can be fixed by using tubes. They bite very well, so if you hit a batch of "uneven" road (where the grind it down to lay fresh stuff and it's all lines) or going over a grated bridge, they will grab the ruts and pattern in the road and you will fight to keep the car straight.

Other than that, I love them. I will be putting another set on when these are done (they have tons of life left at 8k BTW).