Wow! Over two pages of posts and only two or three products mentioned?? Let me add to the diversification of this thread:
Autogylm Tyre Dressing!!
It seems to have a good shine character to it. I'll post a pic of it in my gallery after I'm done writing this. I have NEVER experienced spin-off after over a year and a half of using it. The gel version gives off an even wetter shine. To create a wet shine, with this product you can LAYER the amount of product you want.

BUT, with all tire dressings, the level of shine varies from tire to tire because different tire dressings react differently to different tire compounds. What works well for one tire might not produce the same level of shine with another tire (this is from my experiences).