Definitely spend the extra money and get a 2011, either the 535 or 550 is nice. The 2010 are the older style and frankly, they look dated. You will drive around in it looking at F10's and wish you had one. Never liked the pre-F10 look.
2012 535xi|Dark Graphite|Black Interior|M-Sport|
Prior BMW's: 1987 325e|1993 740i|1998 740il|2002 745li|2007 750li|2006 750li