Yamaha Gp1200r Riva Gas Power Valve on 2040-parts.com

One Lap of the Web: The Markchurian Candidate

-- When does a cartoonist become a short-track racer? When he's Bob Englehart of the Hartford Courant, and he writes a book about his childhood in and around Indiana, a childhood spent fixated on oval racers. Englehart, a Pulitzer Prize finalist for his political cartooning, explores why America's youth are willing to risk their lives to drive in circles -- and why he himself is so addicted to it.

Tech secrets of the Land Rover Discovery Vision Concept

Land Rover's Discovery is celebrating its 25th year in 2014, but the brand is already looking to the future. The Discovery Vision Concept, unveiled in New York earlier this week, gives a taste of the design language of the next Discovery (which is due next year), as well as an extended family of Discovery models. It also previews some eye-popping new technology that could be used on future Land Rovers and Range Rovers.

General Motors CEO Rick Wagoner out, replaced by COO Fritz Henderson

General Motors chairman and CEO Rick Wagoner has agreed to "step aside" after pressure from the Obama administration last week, ending his eight-year tenure at the helm as the company seeks additional federal aid. He's been replaced by GM President and COO Fritz Henderson, effective immediately. GM confirmed the moves shortly after midnight Monday.