I am a graduating senior at CSUN majoring in Mechanical Engineering and also like to be in the automotive industry. I am currently doing my second year of FSAE and this year I am the project manager of the team (
http://www.ecs.csun.edu/sae).
CSUN's automotive program isn't strong after the earthquake, but getting more interest after our great success last year with our FSAE car. Doing FSAE is the best way to get in the industry and if you're dedicated you won't have time for Co-Ops or internships. It has brought me the awesome opportunity to work with Yamaha and Ricardo.
There are not many internships relating to automotive since we are outside the commute area to the companies. There are a few small companies in the area though so talk to the professors. It shouldn't discourage you, as many graduates go to the automotive industry and also the So Cal SAE section has alot of people from Nissan on the board.
If you need more info, feel free to PM me.