Arctic Cat Tigershark Monte Carlo Daytona 770 Exhaust Expansion Chamber Bracket on 2040-parts.com

Porsche 918 Spyder: The first ride in the future game changer

Faster than the iconic Carrera GT yet more economical than parent company Volkswagen's frugal new Up supermini, Porsche's next supercar, the 762-hp gasoline-electric powered 918 Spyder, promises to offer the best of both worlds—scorching performance and ultralow consumption. Autoweek joins Porsche's engineering team for the very first test of the car that is already causing headaches in Maranello and Sant'Agata. For all of its intense promise and awesome potential, the very first running prototype of the upcoming Porsche 918 Spyder looks suspiciously like a refugee from a shadowy postapocalyptic movie set as it glides silently into view across the vast expanse of bitumen at the Nardo test track in southern Italy.

SAIC's Mobiliant wins 2013 LA Design Challenge

SAIC has been revealed as the winner of this year's LA Design Challenge. The Chinese carmaker's entry, a single-seat urban public transit vehicle, was declared the victor after intense judging sessions took place throughout the LA auto show's second press day. The panel – which included Tom Matano, executive director, School of Industrial Design at San Francisco's Academy of Art University, and Stewart Reed, chair of Transportation Design at Pasadena's Art Center College of Design – combed through the entries, discussing their merits and how closely they fit the brief, before hearing the teams' presentations in the afternoon.

Audi A5 Sportback offered exclusively in Europe, U.S. customers stiffed

Audi is expanding the A5 lineup in Europe with a Sportback version--we're talking a four-door with a coupelike roofline. It will join the coupe and convertible A5s now on sale. The bad news?