For areas with more rain than shine, there is available a $ 2,000 all - wheel drive option that also switches from a staggered (with wider rear drive wheels) to a square setup in which all four wheels and tires are the same size.
Rather than focus on a squaretire setup (same size rubber front and rear) to aid cornering performance, GM says it will do this via tweaks to the rear suspension, anti-roll bar and tire compounds.