Cool, I´m from suburban Philly myself.
What to expect? Well for starters don´t hang in the far left lane unless you are driving faster than everyone else.
NOT every highway in Germany has an unlimited speed limit (despite what many Americans think) and you will get a ticket so mind the signs, which are yes, in kilometers. You might want to do a bit of calculating before.
You can drink just about everywhere, but not if you are driving (well, as long as you are not technically drunk you can have a beer and drive at the same time, but I wouldn´t risk it).
Otherwise, the area around Lauda is one of the prettiest in Germany, and has a great old world charm. When the weather is nice it´s fantastic. As for language, don´t stress, KIT is plenty international and English is widely spoken. You´ll have no problems there.
Enjoy!