yes and if you have an amazing relation ship with your credit card company it might be worth it. Except for good credit a lot of car companies offer 0% or really low financing so it might not be the best way.
Back when new car interest rates were sky high (okay 10% for good credit) my mom had a platinum card with a $30,000 limit and 4% interest. She talked the loan company down to 3.5% so she wouldn't use her card
Just have to know your options