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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:

Porsche-Piech buy 10% stake in VW's holding company

In August, 2009, as the scuttled merger of Porsche and Volkswagen had gone bad and Porsche was backed up against the ropes, Porsche Automobil Holding SE (PAHSE) relinquished a ten-percent stake in itself to Qatar Holdings as well as options it held on 17 percent of VW shares. The sale meant that, for the first time since the founding of the company 61 years before, an entity outside the Porsche and Piech families had a say in the running of PAHSE.
Buying that ten-percent stake back returns full ownership to the two families, the holding company's sole possession being ownership of 50.7 percent of VW's common shares. The price paid wasn't disclosed, but at market rates the purchase would be worth close to $1.25 billion. Qatar intends to hold onto the 17-percent stake it has in Volkswagen.

2024 CES Mega Photo Gallery: Honda concepts, a VinFast truck and flying cars galore

The 2024 rendition of CES is coming to a close, and per usual, it was full of all the funky, futuristic tech the show is long known for. It’s also full of cars and legitimately forward-thinking tech related to cars, and we were on the ground to see it all and bring photos to you in this Mega Gallery.  A boatload of manufacturers attended and made big reveals, from the Star Wars-like Honda concept cars to a pickup truck from VinFast, the sort of debuts we got to see ran the gamut. Of course, there were plenty of reveals and vehicles on the floor that were even more outlandish than concepts from traditional OEMs like Honda and Mercedes. Check out this flying Xpeng car as an example. Or perhaps the flying Mansory car. Apparently, flying cars were a theme. Anyway, make sure you scroll down to check out the various reveals and photos of the cars and technologies revealed at the 2024 CES in our barrage of galleries. Honda 0 Series Honda 0 Series saloon 1 View 26 Photos VinFast Wild pickup VinFast Wild 10 View 10 Photos VinFast VF3 VinFast VF3 1 View 4 Photos VW GTI Prototype with AI-enhanced infotainment CES 2024: New Volkswagen GTI with AI-Enhanced Infotainment View 17 Photos Kia PBV Concept Kia PBV Concept platform View 28 Photos Sony Honda Mobility Afeela concept Afeela by Sony Honda Mobility View 5 Photos Hyundai Mobion Concept Hyundai Mobion Concept CES 2024 View 6 Photos Mullen Five RS Mullen 2 View 14 Photos Mansory Empower concept Mansory Empower concept View 14 Photos Hyundai Supernal S-A2 eVTOL Hyundai Supernal S-A2 View 13 Photos XPeng Aeroht eVTOL Flying Car XPeng Aeroht eVTOL?Flying Car View 6 Photos Verge TS Ultra verge-ts-ultra-ces-2024-electric-motorcycle-01 View 17 Photos Horwin Senmenti Maxi Scooter Range Horwin Senmenti 0 View 12 Photos BMW Teleoperated Valet BMW iX controlled with Remote Valet View 15 Photos Mercedes-Benz MB.OS infotainment Mercedes-Benz MB.OS infotainment system View 9 Photos Lamborghini Telemetry X Lamborghini Telemetry X View 5 Photos Related video: Green Motorsports CES BMW Ford Honda Hyundai Kia Lamborghini Mercedes-Benz Volkswagen Volvo Green Automakers Green Culture Technology Infotainment Smartphone Autonomous Vehicles Commercial Vehicles Concept Cars Polestar Infrastructure