I agree with sam, if you're interested in the automotive industry, an automotive engineering program would be ideal since its customized for what you want to do.
However, it is possible to get into automotive going another path. My first job after college was in the auto industry and I graduated with a degree in mechanical engineering technology.
I came out of college with substantial debt so I can say that it's very smart of you to start thinking about this now. I suggest you use a loan calculator to estimate what your student loan payments would be each month, compare that to the average starting salary, and speak with financial advisors at your school.
Best of luck,