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Ford Green Zone works magic with GPS to make your drive smarter, cleaner

For the most part, plug-in hybrids rely on the power stored in the battery until that charge is depleted. Unless the switch can be changed manually, it's only then that the cars fire up the internal combustion engine and begin using the fossil fuels on board. This is ideal, of course, when one's drive isn't long enough that the car needs to start sipping gasoline at all. On longer commutes, when it's certain that the route is longer than the car's all-electric range, this isn't necessarily the most efficient use of energy. Ford's Green Zone system is designed to save some of that juice for the parts of the drive that require slower speeds. Ford is working on a smart system, based on Nokia mapping technology, that uses GPS data to use both the electricity and conventional fuel more efficiently. Since battery power is less efficient at highway speeds, Ford's Green Zone system is designed to save some of that juice for the parts of the drive that require slower speeds, rather than just using up all the electrons right at the beginning of the drive. Using a website or the in-car navigation system, the driver can pinpoint the parts of the route, highlighted in green, where using battery power would be more effective, and set the car to automatically switch to electricity for those sections. Depending on the route, the car could automatically switch back and forth between the two power sources multiple times, particularly if the drive is a mix between city and highway driving. Of course, Green Zone will be go beyond that. The program is being developed to take traffic and road grade into account, details that allow the car to be make even smarter choices to improve efficiency. Ford even hopes to have Green Zone learn driver habits, and respond accordingly depending on who is driving the car. The system could control other features as well, such as anticipating corners and shifting the headlights to better illuminate the road ahead. Green Zone could also potentially use information from vehicle-to-vehicle networking to control functions in the car. The Green Zone system still has a few years before it will be ready to be put into production vehicles, but Ford is confident it will make its way onto the road eventually. As with other innovations that improve efficiency and make our vehicles smarter, we can expect to see similar technology from other manufacturers, until it becomes a regular part of driving in the future.

249 reasons you want to go to Goodwood Revival

At its most basic, Goodwood Revival is a long weekend worth of car races featuring cars made before 1970. There are lots of those, though, including some pretty great ones all over the world. But nothing is like Goodwood Revival because it's so much more than "just" vintage car racing.  First, you have to look the part. Attendees are strongly encouraged to dress in period clothing from the 1940s, 1950s and 1960s, with a strict dress code enforced should you want to enter the paddock. The goal is to create a more authentic atmosphere to match the cars and the meticulously restored and recreated paddocks, grandstands and other facilities of the reborn Goodwood circuit. Now, the dress code was relaxed this year since the Saturday was literally the hottest Sept. 9 on record in that part of England, and the organizers didn't want people dropping dead because they needed to wear an ascot. Some people definitely took the "relaxed" bit too far, but there was still plenty of atmosphere maintained. It really does make a big difference, as those "relaxed" individuals were often akin to seeing a Starbucks cup in a scene from "Game of Thrones."  You can see what I came up with below along with former Autoblog editor Reese Counts and various other Goodwood attendees. Second, there's the parking lot. But I'll let this entire separate post detail that. Third, there's the enormous carnival-like area featuring vintage-looking rides and various boutiques. Both of those are on the outside portion of the track, and honestly, you could easily just spend your entire day in the parking lot and carnival/shopping area without even crossing over into the circuit area. There you'll find more shops, food and drink opportunities, plus obviously, race car paddocks and the track itself.  Fourth, there are airplanes! I heard there are fewer than in the past, but they're there and they're cool. The Goodwood circuit started out life as the perimeter road around the World War II airfield RAF Westhampnett.  Fifth, with all of the above, Goodwood Revival really is fun for the whole family. It isn't just a bunch of old guys sitting around in lawn chairs. There are plenty of women and adorably dressed children, including babies in vintage prams. It's also not an event that's exclusively for the uber rich, even if they are certainly in full force given who has the sort of money needed to go vintage racing.

Ford made three big mistakes in calculating MPG for 2013 C-Max Hybrid

It's been a rough time for the official fuel economy figures for the Ford C-Max Hybrid. When the car was released in 2012, Ford made a huge deal about how it would beat the Toyota Prius V, which was rated at 42 combined miles per gallon, 44 city and 40 highway. The Ford? 47 mpg across the board. How did Ford come to this place, where its Prius-beater turned into an also-ran? Well, after hearing customer complaints and issuing a software update in mid-2013, then discovering a real problem with the numbers last fall and then making a big announcement last week that the fuel economy ratings of six different 2013 and 2014 model year vehicles would need to be lowered, the C-Max Hybrid has ended up at 40 combined, 42 city and 37 highway. In other words, the Prius trumps it, as daily drivers of those two vehicles have known for a long time. The changes will not only affect the window sticker, but also the effect that the C-Max Hybrid (and the five other Ford vehicles that had their fuel economy figures lowered last week) have on Ford's compliance with greenhouse gas and CAFE rules for model year 2013 and 2014. How did Ford come to this place, where its Prius-beater turned into an also-ran? There are two technical answers to that question, which we've got below, as well as some context for how Ford's mistakes will play out in the bigger world of green vehicles. Let's start with Ford's second error, which is easy to do since we documented it in detail last year (the first, needing to do a software update, was also covered). The basic gist is that Ford used the general label rule (completely legally) to test the Fusion Hybrid and use those numbers to figure out how efficient the C-Max Hybrid is. That turned out to be a mistake, since the two vehicles are different enough that their numbers were not comparable, despite having the same engine, transmission and test weight, as the rules require. You can read more details here. Ford's Said Deep admitted that the TRLHP issue is completely separate from the general label error from last year. Now let's move on to last week's announcement. What's interesting is that the new recalculation of the MPG numbers – downward, of course – was caused by a completely separate issue, something called the Total Road Load Horsepower (TRLHP). Ford's Said Deep admitted to AutoblogGreen that the TRLHP issue had nothing to do with the general label error from last year.