PenFed's Auto Loan page
The 2.99% APR for new and used auto loans is listed at the top. However, in the middle of the page it's still showing 3.99%. It appears you have to log into your account to see the details of the 2.99% APR. Terms can range from 12 to 60 months.
Credit for the find goes to this FW thread
Anyone can join PenFed. Refer to this post
for more info.