Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Porsche 911 cabriolet: First official photographs

Porsche has developed an innovative fabric and composite-plastic folding roof for the 911 cabriolet as part of a push to give it a cleaner appearance, improved aerodynamic efficiency and greater levels of refinement than its strong-selling predecessor. Pictured here officially for the first time ahead of its world premiere in January at the Detroit auto show, the new open-top 911 is planned to go on sale in North America in 2012 in Carrera cabriolet and Carrera S models. Eschewing the traditional multilayered fabric structure of the 997 series 911 cabriolet, the next model (991 series) adopts a specially developed lightweight roof that uses two fabric-skinned composite plastic panels for the upper and rear part of the structure, giving it a more uniform shape together with a tauter fit that is claimed to make it more resistant than before to buffeting at high speeds.

Frankfurt Motor Show news review: making sense of the 2013 IAA show

Newspress Frequently the car that attracts people’s attention at motor shows is an exotic-looking beast that everyone ‑ creators included ‑ know will never see the grind of a production line. Unusually, at the 2013 Frankfurt Motor Show press day, the car on everyone’s lips was a model that many journalists have already driven, and for which dealers are already taking orders: the BMW i3. With its skinny tyres and boxy, upright stance, the all-electric model isn’t as easy on the eye as the usual headline-grabbers.

Fuel-tank probe rekindles old issue

The placement of fuel tanks on passenger vehicles has changed over the past three decades, and for good reason. Automakers gradually have repositioned the tank to an area in front of the rear axle, generally below the rear passenger seat. Statistically speaking, the tank in that location is less vulnerable in a high-speed, rear-end crash than in the previous location--between the rear bumper and axle.