Mercedes R107 Weatherstrip For Convertible Top New + 1 Year Warranty on 2040-parts.com

2014 Cadillac XTS adds new twin-turbo V6

Cadillac is adding a new 420-hp, twin-turbo 3.6-liter V6 as an option for its XTS sedan for 2014. General Motors unveiled the engine back in March, confirming that it will be an option on the new-for-2014 Cadillac CTS, and recent Cadillac press materials confirm that the engine option will be expanded to the XTS. The all-aluminum engine makes use of direct-injection technology and is the highest-output V6 in GM history.

Video provides a closer look at Mercedes-Benz SLS AMG GT3 race car

Mercedes-Benz used the recent Amelia Island Concours d'Elegance in Florida as the opportunity to take a closer look at the SLS AMG GT3 race car. Assistant product manager William Vetter leads the walkaround of the car. Features include the extensive use of the carbon fiber, ducting for braking cooling and aerodynamics, and the explosive charges that blow off the door for an emergency escape.

One Lap of the Web: Hit the salt at Bonneville, dream car junkyard sold and the BMW 507

-- Known as the junkyard where GM dream cars went to die, Warhoops salvage yard has been sold. The yard, located not too far from GM's Warren, Mich. Tech Center, shot to stardom when four forgotten concepts -- the 1955 Cadillac LaSalle II roadster and sedan, the 1955 Chevrolet Biscayne, and the 1956 Cadillac Eldorado Brougham Town Car -- were rescued in 1988 by collector Joe Bortz in 1988.