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Audi reveals even more efficient 2015 R18 E-Tron Quattro

We've seen two of this year's LMP1 manufacturer challengers – Porsche's updated 919 Hybrid and Nissan's GT-R LM Nismo. Audi has finished cooking up the successor to its Le Mans champion and unveiled the fifth-generation R18 E-Tron Quattro, even better than before. The bodywork monocoque is carried over, but the body around it has been reshaped to improve airflow from front to rear with a new hood, front fenders and wheel arches, and radiator configuration. The engine cover behind the cockpit is shrunk more closely around the engine, and there are new headlights. The hybrid system can expend double the energy per lap this year, putting Audi in the four-megajoule class under the energy-use regulations. That extra energy will come from 17-percent more capacity built into the flywheel storage system and an electric motor good for 272 horsepower. The revisions haven't increased the weight of the car, pegged to the minimum allowed at 870 kilograms. They have, however, forced changes to the TDI engine, which has to use 2.5-percent less fuel per lap to offset the increased hybrid output. The 558-hp V6 has been optimized such that it "managed to more than compensate for the loss" of fuel allowed, and Audi expects "significantly" lower lap times this year and less fuel used. We're still waiting to see what Toyota has done to its World Endurance Championship-winning racer, but we're already looking forward to this year's Le Mans. It's going to be cracking. You'll find a press release below the videos with more info on the Audi. Related Video: New Audi R18 e-tron quattro even more efficient - Aerodynamics, hybrid drive and many other details improved - Efficient TDI engine consumes even less fuel than before - Technologies from Le Mans winning cars now in production at Audi Ingolstadt, March 21, 2015 – Audi is starting the 2015 season with a thoroughly revised R18 e-tron quattro. In the FIA World Endurance Championship (WEC) and in the Le Mans 24 Hours as the season's pinnacle event, Audi is going to compete with a hybrid sports car in the 4-megajoule class. A twofold quantity of hybrid energy, fundamentally revised aerodynamics, the next step in lightweight design and a lot of detailed work characterize the fifth generation of the Audi R18. "The possibilities of the revolutionary regulations that have been in effect for LMP sports cars since 2014 are far from having been fully used.

Car technology I'm thankful and unthankful for

The past few years have seen a surge of tech features in new vehicles — everything from cloud-based content to semi-autonomous driving. While some of it makes the driving experience better, not all tech is useful or well thought out. Automakers who are adept at drivetrains, ride quality and in-cabin comforts often fail at infotainment interfaces and connectivity. From testing dozens of vehicles each year and in the spirit of gratitude, here are three car tech features I'm thankful — and a trio I could live without. Thanks Connected search: This seems like a no-brainer since everyone already has it on their smartphones, but not all automakers include it in the dashboard and as part of their nav systems. The best ones, such as Toyota Entune, leverage a driver's connected device to search for a range of services and don't charge a subscription or require a separate data plan for the car. I also like how systems like Chrysler Uconnect use Yelp or other apps to find everything from coffee to gas stations and allow searching via voice recognition. Apple CarPlay and Android Auto: It took two of the largest tech companies to get in-dash infotainment right. While they have their disadvantages (you're forced to use Apple Maps with CarPlay, for example), the two smartphone-integration platforms make it easier and safer to use their respective native apps for phoning, messaging, music and more behind the wheel by transferring a familiar UI to the dashboard — with no subscription required. Heated seats and steering wheels: I really appreciate these simple but pleasant features come wintertime. It's easy to get spoiled by bun-warmers on frosty mornings and using a heated steering wheel to warm the cold hands. I recently tested a 2018 Mercedes-Benz E400 Coupe that also had heated armrest that added to a cozy luxury experience. Bonus points for brands like Buick that allow setting seat heaters to turn on when the engine is remotely started. No thanks Automaker infotainment systems: Automakers have probably poured millions into creating their own infotainment systems, with the result largely being frustration on the part of most car owners. And Apple CarPlay and Android Auto coming along to make them obsolete. While some automaker systems, such as Toyota Entune and FCA's Uconnect, are easy and intuitive to use, it seems that high-end systems (I'm looking at you BMW iDrive and Mercedes-Benz COMAND) are the most difficult.

Automakers need to stop stalking celebrities

Since the invention of the automobile, cars and stars have gone together like paparazzi and the Kardashians. During this season of starlet-adorned award ceremonies, from the Golden Globes through to the Oscars, you will find a lot of car companies all vying to loan out their vehicles to any celebrity with a recognizable face who happens to be heading to a red-carpet award ceremony. There is, however, none so coordinated, consistent and aggressively playing the Fame Game as our friends at Audi. Since the invention of the automobile, cars and stars have gone together like paparazzi and the Kardashians, so by association getting a celeb behind the wheel of your car brand gives it an instant image boost that must make the car more attractive to buyers. Celebrity tales equals dealership sales. That's the logic, anyway. But surely the millions of dollars spent giving free cars to rich stars is a waste of precious and increasingly smaller marketing budgets. It's time to make the car the star, not the other way around. Lets be clear, we are not talking about the very obvious dropping of famous faces into big budget ads. That has its place in the marketing toolbox, but in a very media savvy world it's clear most of us get that play-for-pay concept. Today, the use of just a famous name in an ad yields very little influence on whether you or I will buy that car. No, this awards-ceremony loaner deal is a subtler, but higher risk, idea that if you see a "star" with "their" car in "real life" then surely that adds to the car's appeal. We, the audience, are expected to start salivating like Pavlovian puppies in our desire to have same car in our own, less red-carpeted driveway. Geoff Day has been called the "Pied Piper" of the auto industry, leading auto journalists on wild rides around the globe in his position as former director of communications for Mercedes-Benz USA. Before that, he worked at DaimlerChrysler UK on its PR efforts, and rubbed elbows with the Queen of England in his role at the Buckingham Palace Press Office. His phone is filled with the numbers of the great, the good and the bad. His head is filled with dirty little secrets hiding in many corners of the auto industry. There is no doubt that the publicity that comes with a well placed story, picture or feature can help raise awareness of a product – Oprah proved that with her "Favorite things" – especially if you are launching a line of wrinkle cream or juice bars.