Yamaha Wave Runner 650, 2- Piston Ring Sets .50mm Over Size P/n 6m6-11601-20 on 2040-parts.com

Audi Sport Quattro Concept grips the 2013 Frankfurt Motor Show

Audi has revealed the Sport Quattro Concept here at the 2013 Frankfurt Motor Show – 30 years after it first showed the original Sport Quattro at the same Frankfurt show in 1983. A retro-inspired but thoroughly high-tech concept, it packs a 700hp V8 plug-in hybrid engine for explosive performance that has an unexpected green twist, too.

Why the Stingray's $52K sticker should come with an asterisk

General Motors resisted the urge to jack up the price on the 2014 Corvette Stingray, despite major enhancements on the seventh-generation sports car. The $51,995* sticker for the coupe, which is expected to hit showrooms by September, is just 1,400 bucks more than the current model, even with its more powerful engine, better fuel economy and vastly improved interior. Why the asterisk?

MIT develops self-transforming materials that behave 'like robots without robots'

A cross-disciplinary research lab at the Massachusetts Institute of Technology (MIT) has developed a suite of programmable materials, including carbon fiber, printed wood grain, textile composites, rubbers and plastics, that self-transform when exposed to an external stimulus. Director of the Self-Assembly Lab, Skylar Tibbits, presented a TED talk on 4D printing in 2013, where he demonstrated how a flat sheet of material could effectively build itself when exposed to water, like a robot without a robot. Following positive feedback from industries including aviation, automotive and manufacturing, his lab has been working on developing materials that change according to different activation sources, including heat, light, and air pressure, in addition to water – all of which have automotive relevance.