SANTA MONICA, Calif. -

After an October that surprised the industry with its strength, November is continuing this momentum, already eclipsing the past month’s highs, according to TrueCar.com. But the company also discovered that while the new-vehicle SAAR continues to climb, used-car sales are showing a 4.6 percent decline from October.

On a year-to-date basis, however, the news is more positive. Used-car sales remain ahead of the 2010 pace and are estimated to come in at 2,614,847 sold, up 1.4 percent year-over-year.

The ratio of new to used is estimated to be 1:3 this month, company officials added. 

TrueCar is forecasting a SAAR of 13.3 million, up from 13.2 million this past October and up from 12.3 million year-over-year. 

If this holds true, it would be the fourth straight month of year-over-year growth, the company noted. 

The company even contends that following this month’s growth, the seasonally adjusted selling rate could hit the 14 million mark in December.

"We’ve seen six straight months of year-over-year gains for new-vehicle sales, which shows positive momentum for the auto industry, " said Jesse Toprak, vice president of industry trends and insights for TrueCar.com. "There is a strong possibility that we could reach a 14 million SAAR next month."

Another industry element on the rise is incentives, up almost 3 percent from October.

The average incentive spending per unit is predicted by TrueCar to come in at approximately $2,534 this month, representing an increase of 2.5 percent from October 2011, but down 0.5 percent year-over-year.

"New-car retail sales show strength in consumer demand, and this month will be the fourth straight month of year-over-year increases," said Kristen Andersson, analyst at TrueCar.com. 

"Every major automaker increased incentives this month, compared to last month, as they are looking to push auto sales and finish the year strong,” she added.

Ultimately, TrueCar is forecasting that November’s new light vehicle sales in the U.S., including fleet, will come in at 972,712 units, up 11.5 percent year-over-year, but show a 4.7-percent decline from October. 

Retail sales are likely to be up 12.2 percent, compared to November 2010, and down 4.2 percent from October.

Lastly, the company shared that fleet and rental are expected to make up 19 percent of total industry sales this month.

TrueCar.com also offered the following charts for November: