2010 Wolfsburg Edition on 2040-cars

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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:

VW budget sub-brand stuck in limbo over VW standards, costs

Reports in October 2012 claimed Volkswagen had begun investigating the creation of its own budget brand. This came after having failed to purchase Malaysian car company Proton or produce a meaningful partnership with Suzuki, and after watching Renault-Nissan make piles of euro on Dacia and plot the return of Datsun. For VW, more important than the question of what to call it was how to build it profitably and in a way that didn't damage the VW brand. According to a report in Autocar, a satisfactory answer still hasn't been found. The hurdle is how to hit "'necessary' quality and safety levels" at the price points needed to make the venture worthwhile. At the time of the 2012 report, German outlet Der Spiegel said VW was trying to get prices down to 6,000 to 8,000 euro ($7,784 to $10,379 US), about two thousand to four thousand euro under the price of the VW Up and in line with the cost of a 6,790-euro Dacia Sandero in Germany. In March 2013, VW announced, "We want to bring a true budget car to the market in China in the foreseeable future," the most concrete move in that direction after years of planning to make a decision. Working with local Chinese maker FAW, it was predicted that the vehicle in question would appear around 2016, but as of November last year a final vote on it needed to wait until this year because "We are still working on the cost side" and profit possibilities for a car that "has to be durable, it has to be precise, it has to be safe." Even Fiat, another automaker long considering a budget brand beneath its Fiat line-up, wasn't sure how to squeeze any extra money from lower-cost products but was sure that it couldn't be done by manufacturing in Europe. If VW hasn't yet made the math work with a joint venture in China, it will be interesting to see how it might build a European go-it-alone business case.

Watch Chris Harris in the electric VW ID.R waste a McLaren 720S

The Volkswagen ID.R doesn't have much in common with a McLaren 720S, other than the fact that they are both performance-crazed cars. One gets its power from batteries, the other from gas. One uses electric motors, the other a twin-turbocharged 4.0-liter V8. One is a halo prototype vehicle, the other is a road-legal supercar available for purchase. So when Chris Harris and "Top Gear" decided to "race" the two against each other, it was more of a demonstration of the VW's unreal capabilities than any sort of real competitive faceoff. In episode five of Top Gear's 28th season, which just aired February 23, the trio of Harris, Freddie Flintoff and Paddy McGuinness welcomed Youtuber KSI on the show and ventured out on a luxury sports car road trip with an Aston Martin, Porsche, and Ferrari. Separately, Harris took to the track to test out Volkswagen's golden egg of the moment, the ID.R. As VW fully launches into its electric-vehicle push, the ID.R is meant to exhibit what battery-electric technology is capable of. With two electric motors, one on the front axle and one on the rear axle, the 2,425-pound ID.R has four-wheel drive and makes a claimed 670 horsepower. As Harris notes in the video, the ID.R. was not built for a specific regulation-bogged racing organization or competition, and thus, it's only held back by the rules of Mother Nature and Father Physics. Since the car's debut, it has been annihilating records around the world, including at Pike's Peak, Goodwood, the Nurburgring, and Heaven's Gate. Chris Harris didn't set any records in the ID.R., but he certainly showed how outrageous this machine is. The 710-horsepower 720S can go from zero mph to 62 mph in less than three seconds, and the ID.R has a sizable lead within that same time. Again, this wasn't an instance of test-and-conclude, it was a show of perspective. The ID.R is a race car, so even though the 720S is one of the best supercars in the world, it never stood a chance. See for yourself above. Related Video: