Auto blog

Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.

Behold your 2015 Nissan Versa Sedan, America

If you've been hoping that the 2015 Nissan Versa Sedan would adopt something of the Versa Note hatchback's styling aesthetic, consider your hopes dashed. This is the facelifted four-door Versa, which is set to make its official debut next week at the New York Auto Show.
You can make your own minds up on the exterior rework, which is a fairly gentle evolution of the current model. The headlights and a new, familial grille are the two big changes for the front of the Versa that give it a bit of Altima style. Out back, the headlights are slightly tweaked, while a sportier rear bumper is the most noticeable change. The top-end Versa SL also adds new mirrors, complete with Audi-ish integrated turn signals, while the Versa SV adds new 15-inch alloys.
Tweaks for the Versa's huge interior are kept to a minimum, and constitute a new steering wheel and a tweak to the center stack, along with some improved materials. Like the Versa Note, Nissan has fitted the NissanConnect infotainment system, although it's only available on the Versa SL.

Roller coaster or racecar, which pulls more Gs?

Looking for a thrill? You're not the only one. You'll find kindred spirits at airfields going up for a skydive, atop bridges and towers with bungees attached to their feet and standing in line for roller coasters at the local amusement park. But you'll also find them in the paddock at the racing circuit.
So what's the commonality? G-force. It's like gravity, only in each of these cases, it's experienced by human invention. But which activity subjects your body to the greatest amount of g-force? That's what Nissan set to find out.
Before putting them back in the cockpit, Nismo sent out two of its young hot-shoes - Jann Mardenborough and Mark Shulzhitskiy - to an amusement park in the UK with a camera and a g-force meter to find out if any of the coasters could produce as much lateral gravitational force as an LMP2 racing car. See what they found in the pair of videos, below.