I installed Silverstars in my 2003 ION back in 2003, and they still worked when I sold the car in 2011.
I installed Silverstars in mom's 2002 Toyota Solara, and they only lasted 3 years.
I think headlight design means as much as the choice of bulb.
I put Silverstar Ultras in mom's 2005 Jeep Grand Cherokee around 2006. Around 2010, they burned out, and I put in Silverstar ultras again. 2014, and they still work.
I have Silverstar Ultras in my Mitsubishi. I had them since 2011, and they still work fine in 2014.
I always read huge flame wars over Silverstar bulbs, but they make night driving easier for me. I love them and they are street legal, and that is all that matters to me.
2010 Lancer Ralliart Sportback