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Your Emails: What's the tech behind continuously variable transmissions?

Brian Cooley explains the tech of CVTs and why they're not used for more performance applications.​

By November 12, 2015


Alpina rolls out a 600-horsepower BMW 5 Series -- but it'll cost you

Built on BMW's own assembly lines, the B5 Biturbo brings M5 power -- and then some -- to both sedans and wagons.

By November 23, 2015


Shock rock: Machine uncovers honking 1,111-carat diamond

A specialized sorting machine that uses X-ray technology sniffs out one of the largest diamonds ever discovered.

By November 19, 2015


Watch swirling magnetic loops on the sun in mesmerizing NASA video

An entrancing set of swirls on the sun's surface gets even brighter thanks to a perfectly placed eruption.

By November 18, 2015


Audi's rolling out three new models for the Los Angeles Auto Show

While all three vehicles have already been shown off in other corners of the globe, the LA show will be the first time they're displayed in the United States.

By November 12, 2015


Jaguar's F-Type sports car is now way more affordable

The British automaker slashed the cost of its entry-level coupe by $3,600, without sacrificing anything that makes the car great.

By November 13, 2015


Check out Honda's Clarity Fuel Cell vehicle in person at the Los Angeles Auto Show

The automaker's latest hydrogen car makes its North American debut next week.

By November 11, 2015


Smart grid 101: What next-gen electricity means for you

The evolving energy industry could totally change the way you think about electricity in your home.

By November 7, 2015


What is HDR for TVs, and why should you care?

High dynamic range (HDR) TVs are here and so is the first HDR content, with more of both on the way. Is this next-gen TV technology worth getting in your next TV?

By September 21, 2015


Mazda ditches the top (and plenty of weight) on two new MX-5 SEMA concepts

A focus on lightweight construction results in two concepts at the SEMA Show in Las Vegas -- the MX-5 Spyder and the MX-5 Speedster -- that are much lighter than the standard model.

By November 3, 2015