http://www.motortrend.com/cars/cadillac ... 9EA7707852
With lame tires on the ATS, its biggest strength is missing (chassis performance). There are better ways to spend $40k than EITHER of these two cars.
ATS ran a 14.0 sec @ 98.6 mph and Mustang ran a 13.9 sec @ 97.2 mph.
Both of those offer a substantially harder charge to 60 than my STS and also a little better trap, to put this performance in perspective.