SANTA MONICA, Calif. -

With TrueCar.com analysts believing the best day in September to purchase a new-vehicle is Thursday, they rattled off more than 10 models with double-digit discounts.

Leading the way on this list with the greatest incentive and rebate package to reduce the MSRP is the 2010 Chevrolet Cobalt. Incentives reduce the vehicle price by 24 percent to $11,898.

The list includes 11 different nameplates and various vehicle segments ranging from a hybrid to a minivan to a compact pickup truck.

“At the end of September we see a combination of events that will definitely bring big savings to new car shoppers,” explained Jesse Toprak, vice president of industry trends and insights for TrueCar.com.

“The end of summer clearance sales, manufacturer discounts expiring, the last minute push from volume incentive programs, all of these give dealers extra stimulus to discount cars,” Toprak added. 

Top September New-Vehicle Discounts
 Year/Make/Model  MSRP  Net Price  Percent Discount
 2010 Chevrolet Cobalt  $15,710  $11,898  24
 2010 GMC Sierra 1500  $21,845   $16,940   22
 2010 Nissan Altima Hybrid  $27,520  $21,353  22
 2010 Ford F-150  $23,085  $18,039  22
 2010 Kia Optima  $18,690  $15,204  19
 2010 Mitsubishi Endeavor  $28,764  $23,552  18 
 2010 Dodge Dakota   $23,495   $19,325  18
 2010 Lincoln MKX  $39,695  $33,383  16
 2010 Volvo S80  $40,050  $34,103  15
 2010 BMW 3 Series   $44,825  $38,698  14
 2010 Honda Odyssey  $37,895  $33,796  11