Barr Mercruiser 4 In. Exhaust Riser Mc-20-44354 on 2040-parts.com

Groupon vouchers for cars? No

The Groupon juggernaut rolled into auto retailing last week, and dealers around the nation watched intently to see whether the online coupon phenomenon could drive herds of shoppers into showrooms. So far, no. Only four consumers agreed to pay $200 for a $500 discount voucher on a new-vehicle purchase at LaFontaine Buick-GMC-Cadillac in Highland, Mich.

Wired for Speed: Enthusiasts turn to parts sites for aftermarket punch at affordable prices

You can get anything--literally anything--on the Internet. And for enthusiasts, this means that rare part is just a little bit easier to find. Ebay Motors says its listings of parts has increased dramatically in the last year, with inventory reaching about 13.9 million parts.

New Porsche SUV could be called Cajun

Volkswagen AG CEO Martin Winterkorn said a new Porsche small SUV will be brought to market soon as part of plans to expand the sports car brand's lineup to boost sales. Winterkorn said Porsche will get "a new SUV, a smaller brother to the Cayenne which might be named Cajun." He was speaking in an interview with German magazine Der Spiegel that was published Monday. Volkswagen is taking over Porsche Automobil Holding SE's carmaking operations as the companies build on a partnership that includes sharing vehicle platforms.