Harley Stock Red Brake Tail Light Sportster Dyna Softail Touring on 2040-parts.com

Driven: BMW Z4

Loved as it may be by its loyal fanbase, the outgoing Z4 was always something of a mixed bag in terms of design. While the car's classic long-bonnet, cab-back profile and short overhangs should have pleased the eye, the BMW's sheer frontal mass made its proportions seem out of balance. The application of the company's then-new ‘flame surfacing' form language also generated a visual business that seemed out of place on something as conceptually simple as a roadster.

Porsche Exclusive to offer Powerkit and Aerokit for 911 Carrera S

Porsche's in-house Exclusive custom division on Thursday introduced new power-enhancement and aero-enhancement kits for the 2013 Porsche 911 Carrera S. The Powerkit boosts the 3.8-liter flat-six engine's output to 430 hp, up from 400 hp. The extra power comes courtesy of redesigned cylinder heads and new camshafts, along with modifications to the electronic engine-management system.

Jeep brings duo of remixed Cherokee concepts to Beijing

China has become and important market for a number of American automakers, and even though Jeep's partnership with local automotive companies goes back decades, it has always faced stiff competition from other brands in the SUV segment. Hoping that the debut of the new Cherokee will revitalize interest in the brand, Jeep has brought a number of concepts to the China auto show in Beijing this week. First up is the Jeep Cherokee Sageland concept, whose design theme and colors were inspired by historical landmarks and scenery of the Shangri-La region, with the SUV's exterior painted in ivory tri-coat pearl with bronze grille collars.