Can we get two car loans with both our names on them?

My fiance and I both want to get new (used) cars. We each have a car loan right now in our own name. But here is the problem, I quit my job 6 months ago and started school full time. I get grant money but cannot use it as a base for repayment. He has a great job but a so-so credit score.(low 600) My credit is better (low 700) Can we co-sign on two loans together? We will each spend about 10-13k.