What are the differences between the 2008 and 2009 IS 250? One better than the other?

 

Front grille and bumper fascia are ever so slightly tweaked. Interior switches/center console changed a bit. Mechanically the same though some improvement in suspension.

 

Nice use of the search button buddy

 

Snubbles says welcome to the forum.

 

There is more changes than that. (ie. more advanced stability control system)

A full like list can be seen on Edmunds.
http://www.edmunds.com/lexus/is-250/2009/#fullreview

If you want find other years between another, you can manipulate the year part in the URL. ie. http://www.edmunds.com/lexus/is-250/2011/#fullreview

 

There's a thread with pics and circles of what changed (interior and exterior) somewhere but I can't find it.