It might seem odd to pit the 2013 Cadillac ATS 2.0 sedan against the 2013 Buick Regal GS. After all, the former is a rear-wheel drive luxury four-door aimed at the BMW set, while the latter represents front-wheel drive sport sedan wrapped in a premium package. Dynamically, there are many differences between the two GM offerings, but each is based around essentially the same 2.0-liter, turbocharged four-cylinder engine. I thought it would be instructive to take a closer look at what are essentially the two quickest sedans in the General Motors line-up and see how they stacked up against each other in the real world.
With close pricing between the base ATS 2.0 and the GS, it's reasonable to expect that some cross-shopping is bound to occur amongst those seeking an affordable, high class ride. Which one will stand above the other in this battle of in-house rivals when subbing in the turbo Cadillac's priciest edition?