Our friends over at the Kicking Tires blog decided to take a gander at how well a few of the new 2008 models did their first month on the market, and it turns out really, really well. Though automakers don't break down what percentage of a particular car's monthly sales were of the 2007 or 2008 model, Kicking Tires compared the September sales numbers to the prior month when the redesigned '08s weren't available. The 2008 Cadillac CTS, for instance, sold 3,887 units in August and a whopping 6,416 units in September. That's a 65% increase in units sold month over month and a 73.5% increase in the average number of units sold per day versus the prior year. Clearly the car's positive reviews are reaching the eyes and ears of prospective buyers, which is a good thing for Cadillac overall. Besides the Escalade, which sells in smaller numbers, the CTS was the only Cadillac that increased its sales last month.