The basic difference between Presbyterians and "most" if not all Baptists, is the form of government. Presbyterians elect Elders to handle the congregations business. The Baptists, or at least the one congregation I am familure with, have congregational meetings to vote on the business.
They both have similar problems, if the Presbyterians elect Elders that are ignorant of what the Bible teaches the congregation suffers, and in the case of the Presbyterian Church (USA) the denomination allows, or does things that are most definately not Biblical. The Baptists allow everyone to vote regardless of their Biblical understanding. Again not good.
Reading a churches website is not very informative as they, very often, say things they really do not believe or adhere to. Sad but true.
It is best to check out a congregation and especially the minister first hand. Being a Reformed Presbyterian I do NOT believe it is Biblical for women to be in positions of Pastor or elected "ordained" officers. The PCA church we attended and left, for other reasons, have women Deacons but they are NOT ordained. If I were visiting a church which had women in those positions I would not go back.
Some questions to ask:
Do you believe the entire Bible is the Word of God? If it takes more than 2 seconds for him to answer yes, Don't go back.
Do they believe and preach the 5 Solas, Bible alone (Sola Scriptura), Grace Alone (Sola Gratia), Christ Alone (Sola Christo), Faith Alone (Sola Fide), Glory to God Alone (Sola Deo Gloria).
There are others but that should be a start.
I hope this is of some help.
"My other car is a VW bug" ,....
That gives me some things to think about and some good questions to ask. 
