Dorman Secondary Air Injection Check Valve For Bmw X5 2001-2006 on 2040-parts.com

One Lap of the Web: Porsche 959s, the Alfa Romeo 4C and the Mercedes-Benz A45 AMG vs. the BMW M135i

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- When initially produced to satisfy FIA homologation requirements in 1986, the Porsche 959 was the world's fastest street-legal production car.

Former General Motors CEO Robert Stempel dies

Former General Motors CEO Robert Stempel, who led the automaker during a turbulent period of recession and restructuring in the early 1990s, has died at the age of 77. "Bob was a very popular chairman with employees, and his many accomplishments as a visionary engineer included leading the development of the catalytic converter, one of the great environmental advancements in auto history," GM said in a statement. "His knowledge of battery development led to the push for the EV1 electric car, and Bob continued to build his expertise in the electrification of the automobile after he left GM in 1992." Stempel died Saturday in Florida, the Detroit News and Detroit Free Press reported Monday night.

New Range Rover Sport takes on Pikes Peak – and wins

The new Range Rover Sport takes on the Pikes Peak Hillclimb Pikes Peak is an unforgiving Hill Climb, spanning 12.42 miles and 156 corners, rising to 4,300 meters above sea level with oxygen levels at the top down to just 58 per cent of those at sea level, making it incredibly hard for both man and machinery to function. But despite the challenge, Land Rover has taken the new Range Rover Sport up Pikes Peak in a new record time for a production SUV, covering the 12.42 mile course of twists and turns in just 12m 35.61s at an average speed of 59.17mph. You won’t be surprised to learn that Land Rover choose to use the new RRS with the 5.0 litre Supercharged engine for the record run, but apart from fitting a roll cage and harness seatbelts, the Sport had no modifications at all.