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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:

Jaguar Land Rover remains bullish on diesels

Despite Volkswagen's recent diesel scandal, Jaguar Land Rover is pushing ahead with ambitious plans to roll out the technology across most of its lineup in the coming years. Jaguar and Land Rover will add diesel engine variants to every model in their lineups, except for the Jaguar F-Type sports car. Land Rover launched the Range Rover and Range Rover Sport with available 3.0-liter turbocharged V6 diesels, and together they have sold more than 330 units so far in September, their first month on sale in the United States. JLA officials say they've seen no fallout from VW's emissions problem and are adamant their diesels meet EPA standards. "That has been our strategy, and it is not changing," Joe Eberhardt, Jaguar Land Rover North America CEO, told the Automotive Press Association on Wednesday in Detroit. "You have to deal with the situations as they arrive. We are confident of diesel." Jaguar will get another diesel next year from its Ingenium engine family, which will initially be sold in the XE sedan and the F-Pace crossover. It's a turbo 2.0-liter four-cylinder unit and makes 180 horsepower and 317 pound-feet of torque. A JLR spokesman said the Ingenium has not yet gone through the EPA certification process, and the diesel-powered models will arrive in the fall. Jaguar also plans to add diesel engines to the flagship XJ and XF sedans. Land Rovers, including the Discovery and Evoque, will also get diesel options, and the company estimates the technology will offer 20- to 30-percent improvements in fuel economy, depending on the vehicle. Eberhardt said it is "too soon to tell" if the diesel market will be weighed down by Volkswagen's situation. The German automaker admitted to cheating on emissions tests to make its diesel-powered cars appear to run cleaner than they actually do in real-world situations. The ensuing outrage forced longtime VW chief executive Martin Winterkorn to step down and prompted a reorganization of the company, which faces legal and regulatory action around the world. Still, Eberhardt maintains JLR is "very confident" in its diesels, which are part of its strategy to grow sales around the world. Land Rover has experienced rapid growth under the ownership of Indian conglomerate, Tata Motors, while Jaguar is set to revitalize its lineup with new entries like the XE and F-Pace to reach a broader market segment.

My year in EVs: 8 electrics that are changing the car industry

The year 2021 will go down as an inflection point in the auto industry’s transition to electric vehicles. It's when many much-anticipated models became reality. No longer sketches or sketchy prototypes, electric vehicles appeared from all corners with everything from the Lucid Air to Ford Mustang Mach-E changing how we think about transportation. I managed to drive a lot of them, and as I went through my notes, I realized IÂ’ve got a mini memoir of the seminal EVs of 2021. HereÂ’s my take on eight of them. Hummer EV Easily the most over-the-top EV I tested this year. The 1,000-hp super truck lived up to the hype with its domineering presence, stupendous power and simply being a reincarnated Hummer. I took it for a short spin on- and off-road at the General Motors Proving Grounds in Milford, Mich., and was impressed with the airy cabin, removable sky panels and expansive touchscreens. Yes, I crab walked, which felt like steering a pontoon boat, though I can see why it would be useful. Lucid Air Dream Performance The most beautiful sedan I tested all year, EV or otherwise. Unlike the futuristic Mercedes EQS — which is quite attractive — LucidÂ’s car is a blend of mid-century modern interior aesthetics and classic European exterior styling. When I walked up for my test drive, someone who IÂ’m pretty sure was comedian Jon Lovitz was sitting inside and taking it all in. As it sat in the valet of a hotel in a wealthy suburban enclave north of Detroit, the Lucid drew more attention than any of the Mercedes, Cadillacs or Lexus models passing by. The driving experience was enveloping. Starting at $169,000 for the Performance model (reservations are closed), the Lucid I sampled packed 1,111 hp and 471 miles of range. From the precise steering to the comfortable suspension, the dynamics were spot-on. It's a formidable product, and all the more impressive given itÂ’s LucidÂ’s first. Chevy Bolt EV The Bolt was the most pleasant surprise for me. It handled well, offered low-to-the-ground hot hatch dynamics and the steering was dialed-in. Adding a crossover variant for the new generation was a smart play. On a summer morning where I went to a first drive of the Ford Bronco at an off-road course, my hour-long commute in the Bolt was an enjoyable appetizer.  The Bolt was also my biggest disappointment due to its extensive recalls for fire risk. Ironically, I had the Bolt in my driveway when the initial recall went out for the previous generation (2017-19).