2009 Kawasaki Vulcan Cruisers 2000 900 500 Classic Custom on 2040-parts.com

Concept Car of the Week: Opel CD (1969)

Despite its sophisticated suspension and spacious interior, Opel struggled to sell its big Diplomat luxury sedan. It was 1968 and Opel simply couldn't compete with Mercedes-Benz, the leader in that segment by far. Bob Lutz, then a young executive at GM Europe, thought of using the sedan's chassis to create a large GT Coupe in an attempt to boost both its sales and profile.

One Lap of the Web: Aural delights and a Citro

-- Ayrton Senna positively dominated the 1990 Monaco Grand Prix: he came in with the fastest qualifying lap, started on pole, set the fastest lap, led every single one of them, won the thing, beating rival Alain Prost in the process, then went on to win the 1990 World Championship. The above video was what it's like to ride onboard with the brilliant Brazilian in his McLaren-Honda, which screams like a madman down the Monaco tunnel. -- Five Citro

Sonoma Historic Motorsports Festival is full

Steve Earle, the granddaddy of vintage racing in America, has picked 375 historic race cars to fill the field at his Sonoma Historic Motorsports Festival, June 5-6 at Infineon Raceway in California's wine country. "The cars are the stars," said Earle. "And when they aren't racing, they are easily accessible in this area for the fans for that up-close and personal experience of inspecting engines, talking with owners or otherwise learning more about the sport and the restoration and maintenance of vintage cars." Earle said the event will continue the tradition of the Monterey Historic Automobile Races, which he founded 37 years ago.