HERNDON, Va. — Audi posted a July record for certified pre-owned sales last month and credited part of these sales to a popular promotion that will be running through the early part of next month.

The 2,766 CPO units sold by Audi during the month compare to 2,521 certified units sold during the same time frame of 2009, when the previous July record was set. 

So what is the promotion generating so many sales? Audi CPO buyers who finance via Audi Financial Services do not have to make the first month's payment.

This deal is part of the Summer of Audi Event, and will be good through Sept. 6.

There is also financing available for as low as 0.9 percent APR, and these deals will be good through Sept. 6, as well.

"The story of Audi momentum in the U.S. market doesn't live only with the brand's consistently strong new-vehicle sales results, which are on track to set a full-year record in 2010," officials noted. "Audi Certified Pre-Owned sales are also benefiting from strong consumer demand and established a new sales record for July."

All Audi CPO models undergo a 300-point inspection prior to certification. Dealers can offer customers the following as attributes all CPO Audi units have:

—24/7 Roadside Assistance for the duration of the warranty, including trip interruption benefits; the balance of the original 12-year Corrosion Perforation Limited Warranty, regardless of mileage. 

—The balance of no-charge scheduled maintenance.

—24-hour customer service support. 

—Only vehicles with an approved Carfax Report are considered for the Audi Certified pre-owned program. 

—A factory-backed limited warranty with coverage for up to six years or 100,000 total vehicle miles.