Mercedes SL63 AMG revealed, Viper teased again and new cars growing old in the Dash

What we're reading this morning after the holiday about Mercedes' new AMG-powered cruisers, the latest teasers from the snake pit and why new cars seem less new than ever before:

Mercedes unveils new SL63 AMG [Autocar] Taking a bit of the spotlight meant for the reveal of this season's Formula 1 car, Mercedes threw out the first glimpse and details of the new SL63 AMG — including a weight loss of more than 200 lbs., a gain in fuel efficiency of 30 percent and a new 5.5-liter V8 turbo tuned to 529 hp. Mercedes will pump out a few performance numbers for the hardtop convertible before its official reveal in Geneva in a few weeks.

Viper teased yet again [

DriveSRT] The teasing continues for the next non-Dodge Viper set for a world reveal in New York this April, with this shot of red metal and carbon fiber in some kind of scoop arrangement. Rear vent, hood intake — there's no way to tell, but it is enough to get the fans interested for a car that's still months away.