I don't think MB offers a low rate. Certainly not ultra low like 1% or 0% (like my husband got on his Hyundai Elantra). Shop around, check with your bank etc and see who gives you the best deal.
Depends on your credit rating too; with my just coming off being a student, with student loans etc in my name, MB was able to beat the rate offered by my bank. For people a little more established than me, it's probably your bank or credit union will be able to beat the rate from MB.
The most common MB rate I've heard is 6.5%.