Pop Off Valve, for IndyCar fans

Lotus to join Honda and Chevrolet. Confirmation is expected Thursday with an unveiling at the Los Angeles Auto Show. A news conference is set for 5 p.m. Eastern.

It's been a banner couple of weeks for the Izod IndyCar series, says Anthony Schoettle of IBJ.com, including Dallara breaking ground on a new plant in Speedway, Ind., and rumors that Alfa-Romeo may join Chevrolet and Honda as an engine manufacturer in 2013.

"Right now, we are in discussion with the IZOD IndyCar Series to remove the fuel-mixture switch from the car completely. This would make the driver responsible for controlling the amount of fuel consumed with his or her right foot."