With the launch of the CTS Coupe 2011 model upon us, the ALG residual value added numbers specialist, worked his magic and has announced that the residual value of the PSTN line will increase. Lower incentives, tighter controls on inventory and focus on the design are likely to increase the value of the vehicle. According to data ALG, 36 months in 2011 the owner of your CTS Sport Sedan, you will lose 45 per cent of the price paid when you drove a brand new, the doors of the concession. The percentage is 9 points more than the resale value provided for the 2010 model. The CTS Sport Wagon 2011 will lose 46 percent of its value over the same period.