70 - 74 Corvette Bb Stainless Steel Exhaust on 2040-parts.com

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.

2012 Mercedes A-Class revealed in patent filings

The slightly drab 2012 Mercedes A-Class Car makers must hate filing for patents on new cars, because it means trusting images of their new and secret car to a third party. Basic images, admittedly, but the real-deal nonetheless. So Mercedes must be spitting feathers today as the images they sent with their patent applications on the 2012 A-Class leak out of every open window, door and PC and straight on to the interweb.

BMW 4 Series Gran Coupe (2015) revealed in patent pics

The BMW 4 Series Gran 4 Coupe is proof that BMW is continuing its efforts to fill every imaginable niche. It's a four-door version of the 4 Series coupe, which itself is based on the 3 Series saloon, and adds to a bewildering array of machines stemming from the F30 3 Series. Officially the 4 Series Gran Coupe, revealed in full in these images from the firm’s design patent, is given the ‘F36’ codename and is expected to be officially unveiled in early 2014. It joins the F30 (3 Series saloon), F31 (3 Series Touring), F32 (4 Series Coupe), F33 (4 Series Convertible), F34 (3 Series Gran Turismo) and F35 (3 Series long-wheelbase saloon) to complete the range of body styles.