1 Series will be at the Philly Auto Show. Not sure about X6 yet.
I'll be there opening day and will post pics. Most likely it will be the coupe car currently at the Washington show (rather than the various cars from Detroit).
http://www.phillyautoshow.com/feature.asp
MINI Clubman also confirmed to be at the show. Also ZR-1 and GT-R for those who may be interested.