Porsche’s Boxster and Cayman are coming seriously close to encroaching on the performance the automaker’s 911 Carrera models thanks to new GTS editions, which go on sale this summer. The mid-engine duo benefit from more power under the hood, unique styling treatments, and a number of extras in the cabin.

Mercedes-Benz has revealed its new S63 AMG Coupe sledgehammer. The vehicle goes on sale this fall and will be offered with all-wheel drive as standard in the U.S. to help tame its monstrous 585 horsepower.

Chrysler has confirmed that it will temporary stop production of its Viper supercar in order to reduce inventory levels. Dealers not understanding the customer needs have been blamed for the build-up of Vipers stuck on lots.

You'll find all of this and more in today's car news headlines from around the High Gear Media network, right here at Motor Authority.

Porsche Boxster And Cayman Get GTS Trim For 2014

2015 Mercedes-Benz S63 AMG Coupe: 2014 New York Auto Show Preview

Chrysler To Temporarily Shut Viper Plant Due To Slow Sales

Study: Rearview Cameras Better At Detecting Objects Than Parking Sensors

Porsche Fires: Every 2014 911 GT3 Engine Will Be Replaced

GM Releases First Details On Next-Gen Ecotec Engine Family

Ferrari FXX Evolution For Sale In Florida With $2.2 Million Price Tag

2014 Subaru Forester: Six Reasons It's Among The Safest Crossovers

Shelby Announces New Performance Parts For Fifth-Gen Mustangs

2015 VW Golf, Beetle, Passat, Jetta All Get New Clean Diesel Engine


Follow Motor Authority on Facebook, Twitter, and Google+.