Tri Z 250 Fuel Tank Cap Yamaha 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.

American muscle and hot rods at SEMA 2013: in pictures

As they say in the States, "there aint no replacement for displacement" – a theory all of the vehicles in our SEMA 2013 American muscle and hot rods gallery subscribe to. Some tuners at SEMA use turbocharging and supercharging to achieve massive horsepower levels from modified cars, but not most of the companies behind the tweaks on these American muscle cars and hot rods – green these vehicles most definitely aren’t, mean they most certainly are. Please click on the image above to read more on American muscle cars and hot rods at SEMA 2013…

New Mercedes-Benz SL to use aluminum to cut weight

The next Mercedes-Benz SL coupes will get more power, less weight and a few neat tricks, including features named Magic Vision Control and FrontBass. We'll get our first look at the new car at the Detroit auto show in January. A few journalists were invited to take a sneak peak at the car during the Los Angeles auto show, but pictures and video weren't allowed.