• Dec 17th 2008 at 1:32PM
  • 27
Click above for image gallery of Porsche's 35-mpg trip

Proving once again that the way you drive is just as important as what you drive, ex-racer and German TV presenter Klaus Niedzwiedz has managed to average just over 35 miles per gallon (U.S.) in a brand-spanking new Porsche 911 Carrera. The route taken covered 400 miles of urban streets, country roads and a large chunk of Germany's famous autobahn. Niedzwiedz wasn't holding up traffic either, averaging 52 miles per hour for the trip and keeping his engine speeds between 1,800 and 2,000 RPM. So, while the latest 911 with its 345 horsepower, direct-injected flat-six powerplant and seven-speed PDK gearbox is an excellent performance machine, it's also an economy car. Sort of. Fine, it's not an economy car at all, but its EPA fuel mileage rating of 19 city and 27 highway is mighty impressive and proves that modern sportscars, including Chevy's latest Corvette, which is also capable of extremely miserly fuel consumption, are better than their predecessors in every meaningful way.

[Source: Porsche via AutoBlogGreen]


911 Carrera Saving Fuel all the Way: Just 6.7 Litres/100 Kilometres

Stuttgart. Porsche sports cars embark on record-breaking test drives time and again – but this time the purpose of the test was quite different: Driving a regular 345 bhp Porsche 911 Carrera with Porsche's PDK Porsche-Doppelkupplungsgetriebe, the car tester, ex-racing driver and presenter of the n-tv Motor magazine Klaus Niedzwiedz covered 648 kilometres or exactly 400 miles on public roads, achieving extremely low average fuel consumption of just 6.7 litres/100 kilometres, equal to 42.2 mpg imp. In the process, he easily outperformed the combined fuel consumption specified under the Euro 5 standard which, at 9.8 litres/100 kilometres (28.8 mpg imp) already sets the absolute benchmark in this category of sports cars in terms of fuel economy.

The Porsche Carrera covered about 190 kilometres/118 miles of the total route on country roads and 30 kilometres/19 miles in city traffic, with the remaining distance on the Autobahn. The car's tank was filled up prior to and after the test drive by a certified inspector of the German DEKRA Car Inspection Authority, who also sealed the fuel tank and the engine compartment in the process. Under normal traffic conditions, with the headlights switched on, and with rain from time to time, the driver sought to keep the car's engine speed between 1,800 and 2,000 rpm, with a road speed between 90 and 130 km/h (56 – 81 mph). The average speed achieved in the process was 84 km/h or 52 mph.

In the words of test driver Klaus Niedzwiedz, "the result proves that with a lot of feeling and discipline you can even drive a 3.6-litre, 345-bhp sports car very economically."

The test drive confirms once again that Porsche is going the right way in its process of technological development. Within a very short time, all production versions of the Porsche 911 with a natural-aspiration power unit have been converted to brand-new engine technology featuring DFI Direct Fuel Injection, improving fuel economy by more than 12 per cent, and with a substantial increase in both torque and engine power.

The optional PDK transmission with seven gears likewise makes a significant contribution to the car's greater fuel economy, at the same time giving the six-cylinder models even more power and performance.

The report on Klaus Niedzwiedz's economy test will be broadcast on Saturday, 20 December, on the German TV channel n-tv Motor at 16:30 CET.

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    • 1 Second Ago
      • 6 Years Ago
      I loved the Top Gear episode where a Prius was driven fast (relatively speaking) around their track with an M3 following at the same speed and the M3 gets better mileage.
        • 6 Years Ago
        That doesn't make it stupid to buy a hybrid, it just makes it stupid to buy a hybrid and drive it like that.
        • 6 Years Ago
        Yea, that was classic, made me realize how stupid it is to buy a Prius or any hybrid 'version' of a car.
      • 6 Years Ago
      This was not hypermiling like americans do, for instance following vehicles to draft, and going 45mph on the highway. He was driving the porsche with care. To manage a top average speed of 52mph you have to drive over 70mph on the highway to make up for the stop and go and slower speeds in the city.

      No one can get 30mph in a typical GM Surburban unless you lie, the drag coeficient is very important once up to speed. The Surburban has to much drag and weight to accomplish this, simple physics will confirm HP requirements with weight and drag. You can then just perform the math.

      As for a hybrid, I drove a Prius for 5 hours at speeds up to 108 (speed limited) and still got 46mpg over all. My average speed was just under 75mph including 2 20 minute stops. Why does it seem eveyone slams this ingenious vechicle?

      Moral of the story is HyperMiling is Stupid and dangerious, for all people. It clogs traffic flow, and costs many times over the gas from one idiot trying to save money. It is only green for that one vehicle. If you drive reasonably, be aware when your holding traffic up and go around the block instead of making eveyone wait we could all get much better gas mileage.

      • 6 Years Ago
      if I was going to drive a porsche like a civic I'd buy a civic.
      • 6 Years Ago
      its not entirely about what you drive, but how you drive it
        • 6 Years Ago
        I agree. I wish the lawmakers understood that. Instead, it's okay for a Prius owner to drive 100 miles to work each day, but you have to pay a gas guzzler tax on something like a 911 even if you only drive it 1000 miles a year.
      • 6 Years Ago
      Wow. That driving seems so....fun.
      • 6 Years Ago
      This isn't anything remotley impressive.

      My cars rated for 25 mpg, if I keep it under 60 I get 35 mpg too.

      It has one less gear too.
      • 6 Years Ago
      I think he's just crazy.
      • 6 Years Ago
      Kudos to him, but I hope he was just proving the capability and went back to driving it properly afterwards. :)
      • 6 Years Ago
      I Brake for Hypermilers. You tailgate me and i will take you out!
      • 6 Years Ago
      Great! Thats getting close to the 30mpg that porsches were getting back in the early 60's.....I don't exactly call that progress. More like just getting back to reasonable mileage....
        • 6 Years Ago
        Remove all the emissions, safety, comfort, reliability and performance equipment that we've come up with in the past 40 years and yes you probably can out mpg the early 60s.

        If that's progress you can keep it.
      • 6 Years Ago
      What's the point?
      I wouldn't drive this car for the purpose of saving fuel, what's the fun in that? If I want to save fuel, I'll drive a Prius or similar vehicles.
      • 6 Years Ago
      With my lead foot, I've never gotten anything near his numbers...
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