Rough Country Adjustable Front Track Bar W/ 2.5"-6" Lift Wrangler Jk 1179 on 2040-parts.com

Ford preparing fastest ever four-door—in Australia

Ford's struggling Australian outpost is set to unleash its fastest-accelerating car yet in the form of a limited- edition version of the four-door Falcon GT Boss 335 sedan running various chassis-based performance enhancements, according to Australian media reports. Known internally at the company's Ford Performance Vehicles division under the code name Panther, the Blue Oval's supersedan is set to run the same supercharged 5.0-liter V8 as the standard Falcon GT Boss 335—itself a locally developed version of the Mustang's 90-degree Coyote unit with unique cylinder heads and renamed Miami. It delivers 449 hp at 5,750 rpm and 420 lb-ft of torque at 2,200 rpm.

Reviving the rotary: Two roads to redemption for Mazda's Wankel engine

Mazda is killing production of its famed rotary engine when the last RX-8 sports car rolls out of the plant next summer. But the company eyes two roads to resurrection. The first is using an improved engine as the main power plant.

Chevrolet Sonic at the 2011 Detroit auto show

One of GM's numerous debuts at the 2011 Detroit auto show was this: the Chevrolet Sonic. Shown as a hatchback and four-door notchback, it's one of The General's weapons to tackle the now-globalised Ford Fiesta and its ilk. Good spot. That's because this is the US-spec Aveo - albeit shown in US-only notchback form as well as the more Euro-flavoured hatchback.