Pilot's Handbook Of Aeronautical Knowledge on 2040-parts.com

$5 billion competition on to replace Humvee

Competition is heating up to win a contract for a vehicle that will replace nearly 18,500 aging military Humvees for the U.S. Army and Marine Corps starting in 2015. Six proposals are in play, with little time left before federal contracting officials decide on development of the $5 billion-plus program.

2014 Mercedes S Class: First interior photos

We have the first interior photos of the 2014 Mercedes S Class ahead of its debut in May 2013, showing a much more modern interior. But now, with a reveal of the new S Class just a couple of months off, we have the first photos of the interior of the new S Class showing a  car that keeps much of the layout of the current S Class but adds in more curves, more technology, a more modern look and a more upmarket feel than ever before. The cabin flows from the screen in to the doors in the same sort of seamless way it does an the Jaguar XJ – where it makes the cabin feel more spacious – the instrument panel is a huge digital display, the seats are differently contoured and trimmed, there seems to be more room, better lighting and an altogether more upmarket feel for Mercedes range topper.

One Lap of the Web: The Worst Cars in the World Edition

-- The first annual "Wal-Mart Car Show" is actually an Internet gallery featuring wood-bedecked Oldsmobiles, sponged minivans, Avatar tribute Silverados, and Subaru Outbacks with giant logs for bumpers. There's no offical judging, so feel free to draw your own conclusions about the drivers of these questionable vehicles. -- A Mitsubishi has many similarities to a Ferrari.