McLaren gives MP4-12C power and gadget upgrade

McLaren has announced a surprise package of upgrades which will be offered to existing owners of its MP4-12C supercar, free of charge. Owners will benefit from more power, a tunable engine noise and fewer foibles - yes, the tricky swipe-to-enter door handles are banished for good. So what exactly has changed on the McLaren MP4-12C for 2013?

Hyundai Curb concept

Hyundai has teased its NAIAS concept, the Curb, ahead of its official unveiling next week, where it will debut alongside a production version of the company's Veloster coupe. The Curb is a compact crossover with a coupe roofline, tapered DLO and exaggerated wheel arches reminiscent of the Nissan Juke, and is similarly difficult to judge in terms of scale from these images. While its exterior appears production feasible, the Curb's interior would seem to live up to its 'concept' billing, with extensive use of smart materials and touchscreen HMI.

Porsche whiffs on customer care

Porsche is making a mistake that could take years—and millions of dollars—to fix, and you might not even be aware of it. Well, that is, until now. The mistake started with Porsche 911 and Boxster models sold in the U.S.