Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Concept Car of the Week: Porsche Tapiro (1970)

By the late 1960s it was time for Porsche to create a new car that would replace its ageing entry-level model, the 912. Its sister company Volkswagen also needed a sports coupe to replace the Karmann Ghia and so the two brands joined together to develop what would become the Porsche 914. These days the 914 holds something of a ‘cool factor', generally considered as the ‘black sheep' in Porsche history.

One Lap of the Web: Vintage trailer marketplace, Toyota's Amlux showroom closes and the Jeep Comanche pickup

-- Tin Can Tourists is a club for vintage travel-trailer enthusiasts. Just in time for Christmas, they've turned their Twitter account into an impromptu classifieds section, featuring everything from a 1956 Scotsman ($8,500) to a tiny 1966 RECO "canned ham" trailer (just $900). Check it out at @TinCanTourists.

Sacramento, Salt Lake City, Los Angeles top road frustration study

Weather, crashes, traffic and attitude--these are the things that make our commutes unbearable. Now, the RoadIntel.com Web site has ranked cities based on its "road frustration index." The index is based on how weather affects the roads, the amount of traffic, the number of crashes and driver sentiment, which is calculated by searching for keywords such as "traffic jam" and "stuck" on Twitter. On the site, you can look at cities ranked day by day and even hour by hour.