Arp Cylinder Head Stud Kit 12 Point Chromoly Bbc P/n 235-4201 on 2040-parts.com

Audi RS7 Dynamic Edition is an expensive styling package

How much dynamism does one man need -- nay, deserve? Audi attempts to answer that with the RS7 Dynamic Edition, a trim package for the current RS7, which is pretty dynamic to begin with. The Dynamic Edition provides no power or suspension upgrades over the regular RS7, preferring to merely look more dynamic (as a proof-of-concept from the "Audi exclusive" program).

U.S. set to raise fuel-economy standard

Government regulators will get their prize of higher fuel-economy standards, and automakers will get the certainty of a national emissions standard, under new rules to be proposed Tuesday by President Barack Obama. The fleet average fuel economy for automakers will rise to 35.5 mpg in 2016 under the president's proposal--10 mpg more than today's mandate. At the same time, the president's proposed rule will cut carbon emissions, thought to be a key factor in global warming.

Sinkhole at National Corvette Museum consumes eight rare cars

Update: The National Corvette Museum has released a video of the sinkhole, which we've embedded below. Museum personnel are reportedly in the process of removing other cars from risky areas. We'll be sure to bring you more information as it becomes available.