Loctite Red 277 Thread Locker 36 Ml Bottle P/n 38656 on 2040-parts.com

Porsche reveals extreme 911 GT2 RS

WITH VIDEO-- Porsche has revealed its most powerful and arguably most extreme road-going 911 to date: the GT2 RS. The new rear-wheel-drive road rocket will debut publicly at the Moscow auto show in late August and will go on sale in the United States in October. Sticker price: $245,000.

For new CAFE rules, automakers place high-stakes tech bets

Game-changing 2015 fuel economy rules are forcing vehicle development teams to make high-stakes bets on expensive technologies--bets that will separate the winners from the also-rans. Not only do federal rules target a 2015 fleet average of 35.5 mpg, up from the current 27.5 mpg for cars and 23.1 mpg for light trucks; they force automakers to bet on different technology packages for each vehicle segment. Companies that do best at mixing technologies while keeping down costs will have an advantage when buyers wince at higher stickers.

Autoweek in review: Win a Chrysler 300 SRT, the new Viper under $100K, and we play with an Aston Martin

Want a chance to win a Chrysler 300 SRT? Of course you do. The Autoweek America Adventure is a road trip you'll never forget—and it may even be your path to 300 SRT ownership.