Gas prices have dropped below $3, but it seems both the most fuel efficient vehicles as well as some of the larger units are seeing similar declines in value at auction.

Interestingly, according to NADA’s AuctionNet data, on opposite ends of the spectrum, the compact car and large pickups are expected to seem some of the largest price drops this week.

This bucks the normal trends seen when gas prices lag — which normally plays out as a depreciation in the more fuel-efficient vehicle segments as well as renewed consumer interest and consequent higher prices for some of the larger units.

Compact cars are predicted to see a price drop of 0.8 percent or $75 this week, while the large pickups are expected to see prices drop by 0.9 percent or $200.

That said, the industry average decline this week is expected to be much more slight than drops seen throughout October — a traditionally weaker month for auction rates.

NADA predicts overall auction prices will drop by an average of $50 this week.

Another market segment that is bucking trends and seeing larger than average drops is the luxury car market.

For example, the luxury car segment is expected to see the largest price decline this week, falling by $225 or 1.1 percent.

Interestingly, the luxury utility segment is dancing to a different tune, with an expected $50 increase — the highest expected rise this week.

The mid-size car segment is the only other segment expected to see prices hike, and only by a slight $25.

These more moderate price declines come after an October that brought with it some pretty dramatic price drops in the lanes.

Overall, the average price of a used vehicle for model years 2009 through 2013 saw the largest wholesale price drops this year with a 2-percent decline last month, according to Black Book data.

Four- and two-week AuctionNet wholesale average prices are created by collecting all AuctionNet records for vehicles up to five years of age for a specified period of time. Prices are then adjusted for changes in mileage and mix.

Current week prices are based on NADA's proprietary used-vehicle value model which includes assumptions for new vehicle prices, used-vehicle supply, gasoline prices, and other economic factors.