2007 with 96,500 miles. Around 25 mpg when driving conservatively without trailer, between 14 and 16 depending on wind and hills when towing the Snoozy.
See details on my Craigslist posting http://detroit.craigslist.org/mcb/cto/3884573910.html
Car has factory tow prep package plus I have added class three receiver hitch, seven pin trailer wiring, electric brake controller and Firestone air bags to lift rear suspension when towing. Pulls my 2850# Lil Snoozy
with no trouble at all.
I am about 50 miles northeast of Detroit.