Harley Davidson Spring 46062-71 on 2040-parts.com

Track time on the Autoweek America Adventure

There is not a whole lot of stuff to see between southern Oregon and way-northern California, other than the beauty and majesty of terrain carved by volcanic action thousands of years ago. Mount Shasta is a stunning reminder of how insignificant and powerless we really are. That power might have shifted with a trip to Thunderhill Raceway in Willows, Calif.

California rules give push to 'green' vehicles in the near future

California regulators on Friday approved a plan that would require 15.4 percent of new vehicles sold in the state be electric, fuel-cell or plug-in hybrid vehicles by 2025. The rule--supported by major automakers--is part of a broader package of regulations called the Advanced Clean Car program designed to cut vehicle greenhouse gas and smog-forming emissions. The sweeping new auto emission standards could mean 1.4 million electric, fuel cell and plug-in hybrid vehicles on California roads by 2025.

Audi A4 2.0 TDIe Revealed

Audi has released details of their third 'e' car - The Audi A4 2.0 TDIe In another in the series of ‘Here’s an even lower emission model than the last one’ series, Audi has announced details of the Audi A4 2.0 TDIe, a 2.0 litre A4 which manages to cut emissions and lower fuel consumption. The A4 TDIe will supplement the existing A4 2.0 litre TDI range – 118bhp, 141bhp and 158bhp – and becomes the third Audi to get the ‘e’ badge – the others being the Audi A3 1.9 TDIe and the Audi A6 2.0 TDIe Audi’s range of TDIe cars use a very similar route to other manufacturers to achieve some pretty spectacular headline figures. This new A4 2.0 TDIe gets the same frugal engine as the A6 2.0 TDIe, which offers 134bhp from it 2.0 litre common-rail diesel.