Car manufacturers have been rolling out just about the best deals ever in the last week and a half leading up to the Presidents' Day holiday weekend.

The somewhat tired offers of zero perfect financing have been coupled with other incentives to bring in the customers. So what, exactly, is going on here? Well, automakers have the ability to make 18 million cars per year. But they only sell in the 9 million range. You do the math. Something's got to give…and in this case it's on the dealers' end.

The shocker here is that you can steal a deal on a fuel-efficient vehicle right now because they're unloved. Now that gas prices aren't exactly soaring, people have returned to buying larger vehicles.

Clark and his wife were able to snag a Prius for around $21,000 -- that's a solid $9,000 below what they were selling for last summer during the peak of the high gas prices. The penny-pincher calculates they'll have a 4.5 year payback on the car. Likewise, there were tons of Yarises and Corollas also sitting unloved on the dealer's lot.

Finally, there's a real sweet spot in the market with used year-old fuel-efficient vehicles that people bought last summer and decided they didn't like.