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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.

"Carry-on" engine will power Le Mans racer

NISSAN will this year compete in the famous Le Mans 24-hour race using a revolutionary 1.5-litre, 400bhp engine that’s small enough to qualify as carry-on luggage. The astonishing new technology produces more power per kilogram of engine weight than the 2014 Formula 1 engines, and what’s more it’s set to lead to road car technology. And while the engine block is too heavy to take onto a plane as hand luggage, its 50cm height, 40cm length and 20cm width makes it small enough.

They could've had a V8--but more opt for 4

Four is the new six. Four-cylinders have replaced sixes as America's most popular engine choice, powering 43 percent of U.S. light vehicles sold in the first half of this year, according to IHS Automotive.