Officially, the 2012 Jeep Wrangler doesn’t exist yet. No one at Chrysler will talk about it, but dealers have already received order guides for it. Now, an Atlanta dealership has posted the first 2012 Jeep Wrangler Rubicon with Chrysler’s Pentastar V-6 on eBay and they’re even offering it for sale below sticker price, instead of some absurd amount of “Additional Dealer Markup” tacked on.

The big news for the 2012 Jeep Wrangler is the new engine. Gone is the anemic 3.8-liter V-6 used on Wranglers from 2007 through 2011, and we say good riddance. The 3.8-liter engine was good for only 202 horsepower and 237 ft-lb of torque, which made the 3,800 pound Wrangler feel sluggish on pavement and hard-packed trails. It works well enough off-road, thanks to the Wrangler’s low gearing, but nearly every Wrangler owner we know sinks serious money into coaxing additional horsepower out of the old V-6.

For 2012, the Jeep Wrangler gets the same 3.6-liter Pentastar V-6 used in the Jeep Grand Cherokee. It’s a big improvement in terms of output, and the new engine is rated at 260 horsepower when stuffed under the hood of the Wrangler. We haven’t seen torque specifications just yet, but we suspect they’ll be an improvement over last year’s 237 ft-lb as well. Fuel economy is up for 2012, with the Pentastar V-6 getting 13 percent better fuel economy in the city and nearly 11 percent better fuel economy on the highway. That puts the two-door Wrangler at 17 mpg city and 21 mpg highway, while the four-door Wrangler Unlimited clocks in with 16 mpg city and 20 mpg highway.

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