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VW Jetta TDI dyno shows HP loss trying to recreate cheat mode

Volkswagen is working on a fix for diesel-engined vehicles that are out of compliance with emissions regulations in the US and other countries. We're told that engineers will be presenting a solution internally sometime this month, but that doesn't mean we'll actually see it in the wild this month. One big question we have about the coming fix is, will it affect the car's performance? That question relates to another we have about the engine as it is: How much performance would the 2.0-liter diesel lose right now if it were turned down to pass US emissions? The Fast Lane Car tried to sketch some answers by going to a shop in Denver, Colorado to run a 2011 Jetta TDI with a six-speed DSG transmission on an all-wheel-drive dyno. The thinking was that if you ran all four wheels the car would think it was on the road, whereas if you ran only two the car might think it's being tested. We'll get straight to the numbers: the stock sedan is quoted at 140 horsepower and 236 pound-feet of torque. When run with all four wheels turning it produced an uncorrected 114 hp and 214 lb-ft at the wheels. When run with just two wheels in motion the Jetta got 113 hp and 188 lb-ft at the wheels. Reading the graph, we're told that power differences between the two runs were as much as 15 hp and 32 lb-ft. You'll need to take some salt with these numbers, though, because the dyno and test protocol in the video are nothing like those used by the EPA. The shop attempts to trick the Jetta into 'emissions testing mode' by using the front wheels only for the two-wheel-drive run, but we have a feeling the software code at issue is far more sophisticated than that, since the ICCT, UVA, the EPA, and CARB investigated the situation for more than a year and couldn't figure out. Also, the technician adjusts for being a mile above sea level with a correction factor of 1.2 applied to horsepower and torque, which inflates the disparity in the final power differences over the two runs. Go to YouTube and read the lengthy comments on the video left by Andrew Price for a more thorough dissection of what could explain TFL's disparities. You can watch the video above, and feel free to try and dissect the results yourselves in the comments below. Related Video:

Volkswagen NMC production guise caught in China

Chinese car site Autohome has what are said to be the first pictures of the Volkswagen New Midsize Coupe concept in production form. VW's NMC was just introduced at the Beijing Motor Show, while background chatter indicated it would go on sale in China, Autohome says that production version will be built at the Shanghai-Volkswagen plant in Ningbo, and the retail guise could be introduced at the Guangzhou Motor Show in November and go on sale that same month.
Assuming this is the production car, its main lines have made the jump from the concept but with less fine detailing, a silver hue and with conventional VW wheels it's lost a little bit of oomph. Still, a few checkmarks on the option sheet can fix most of that, the shape remains handsome and the 2.0-liter turbo underhood keeps performance peppy and mileage frugal enough. You can head to Autohome for a couple more photos of a sedan we'd be happy to make room for over here.

VW pits Foust against Winslow in epic sound-effects battle

Tanner, we feel your pain. You are, by all accounts, an excellent driver. You've won races, starred in television shows, and generally proven yourself a nice all-around guy. And then Volkswagen shows up and asks you to be as childish as possible for a couple laughs on video as you make pretend driving sounds for the German brand's latest ad campaign. How demeaning. And then, to top it all off, they bring Michael Winslow, the king of noise-making merriment, to one-up you. How could they? Just kidding. Really, the videos you see above and below are pretty clever, highlighting the same 18th letter of the alphabet that is affixed to the Golf R, a car we're deeply in lust with. And, to be honest, Tanner's goofy driving sounds are just as good as Mr. Winslow's. See for yourself. And if you feel like acting out your own inner child on VW's behalf, feel free to click here. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. NEW VOLKSWAGEN 'UNLEASH YOUR RRRR' CAMPAIGN ALLOWS USERS TO DRIVE A VIRTUAL GOLF R WITH SOUND OF VOICE Deep learning, an artificial intelligence subset of machine learning, analyzes each unique vocal pitch to create customized film of Golf R driving in sync with the sound of the user's voice Herndon, VA (July 13, 2015) — Volkswagen of America, Inc., is excited to unveil the Unleash Your Rrrr site that allows Volkswagen fans to drive a virtual Golf R using only the sound of voice. The web app utilizes deep learning, an artificial intelligence subset of machine learning, developed by VW's agency of record Deutsch LA, to analyze each user's unique impression of the Golf R engine's roar. It then generates a customized video of the 292-hp turbocharged Golf R model roaring through a race track, drifting, braking, among other cool stunts that correspond with the user's voice recording. "The idea behind the Golf R 'Unleash Your Rrrr' was simple – imagination. As children, we've all played with toy cars, and the power of our imaginations allowed us to turn rugs into expressways and wooden floors into slick racetracks. Our voice would act as the engine. Fast forward to today where we now have the power of technology to enhance our imagination, and to visualize the power of our voice." said Vinay Shahani, Vice President of Marketing for Volkswagen of America.