1966-1967 Buick Riviera Front Bumper Fillers. Bumper Caps. Ff667r on 2040-parts.com

Automakers try to stop increase in ethanol limit to 15 percent of gasoline

Automakers are seeking to head off an EPA ruling that would allow gasoline to contain 15 percent ethanol, up from 10 percent now, and they've won some bipartisan congressional support. The two main automaker industry lobbies have argued that the U.S. Department of Energy has done insufficient testing to assure that gasoline containing up to 15 percent ethanol won't harm vehicles.

Audi previews future product plans

Audi's U.S. boss stopped by One AutoWeek Tower on Tuesday afternoon and offered us an update on the brand's future products. Here's what's happening in the next few years, straight from Audi of America president Johan de Nysschen.

Porsche Rennsport IV rolls on at Laguna Seca

Heavy fog for the morning qualifying runs didn't seem to dampen the spirits of competitors nor the thousands of fans attending Rennsport IV at Mazda Raceway at Laguna Seca. Billed as the largest gathering of Porsche race cars and drivers, the day was filled with on-track action as well as a concours of historically significant Porsches from the past 40-plus years. Three classes of race cars competed on Saturday.