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Porsche is opting for hybrid engine over diesel as a choice for fuel efficienct vehicles. Its designing a hybrid engine for its Cayenne SUV that will give 25 mpg and reduce gasoline consumption by about a third. The hybrid Cayenne will make it to showrooms by the end of 2010. The German market is increasingly moving towards fuel efficient vehicles and interest in climate change and reducing the impact of emissions is strong. Emissions taxes (tying vehicle taxes to emissions) are being considered in Germany and carmakers are seeing a slide in sales in the first half 2007 of 9% compared to 2006 as customers are waiting to see which vehicles will get taxed the most.

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Michelin has come up with a tire that improves braking distance and reduces rolling resistance on the tire. This "green" tire is now on the Peugeot 308 model car. It brakes 10 feet shorter than the previous generation tire and cuts carbondioxide emissions by 4 grams per kilometer, equal to a reduction of one metric ton of carbon dioxide during the life of the car. Michelin charges 10% more for this tire. All this is happening while tiremakers in the US which hasn't signed the Kyoto Protocol like the Europeans have, are trying to dissuade Congress and the states from passing new legislation or adding to the current energy legislation to mandate fuel efficiency standards for tires. One of the US tiremakers arguments is that it would create safety problems by increasing braking distance. Which can't be very convincing if Michelin already has the technology. The Japanese tiremakers like Bridgestone also are trying to develop new technologies to come up with better more fuel efficient tires. As this happens will this put US tiremakers behind and give a competitive advantage to the European and Japanese tiremakers? Note that a study in 2006 by the National Academy of Sciences in the USA estimated that about 2 billion gallons of gasoline and diesel fuel could be saved each year in the US by reducing rolling resistance of the tires by 10%. This was estimated to be the equivalent of taking 4 million cars and light trucks off the road. Other studies on the cost side show that the increase in production costs in Europe for reducing rolling resistance of tires comes to about 20 to 30 euros. Add to the 2 billion gallons of gasoline saved in the US the amount saved in Europe and Asia and you have a substantial saving. Add increases in air conditioning efficiency, increases in fuel efficiency of automobiles, and you have significant reductions in demand over the next 5 years and even more over next 10 years. How will this affect gasoline demand and prices? ...

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Interview with Dieter Zetsche, Daimler's CEO on what Mercedes is doing. Daimler is introducing the Smart car in the US in a big way. Its just 8 feet long and gets 40 miles per gallon. Demand for it from dealers was so strong that instead of 40 dealers as planned Mercedes has setup 67 dealers in 31 states in the USA. About 3500 were sold in the first 3 months, Feb to April 2008. Its Bluetec program is another way its boosting fuel efficiency. The Bluetec program is for making diesel engines as clean as gasoline engines and gasoline engines as efficient as diesel engines. Its the second generation of direct injection systems and both engines will work with self ignition. And Daimler is on the path of combining these engines with hybrids. And also develping fuel cell and all electric battery driven vehicles emission free. As Zetsche says Daimler is moving along this path very fast. In lithium ion battery in cars Daimler is taking the lead. He says the American and Japanese makers are pushing hard but Mercedes is ahead by taking the car to market that has a lithium ion battery. How does Daimler do it? It has about 24 patents. The main reason no carmaker has made it to market with lithium ion battery for cars is the cooling problem that has been seen in laptops also. Mercedes solution to this has been to integrate the cooling of the battery into the cooling system of the car with a sophisticated system, hence the many patents. Next year Dailmer will introduce the S-Class with a six cylinder gasoline engine, the S400 Hybrid with a lithium ion battery, and it will be the first in market. Dieter Zetsche is so confident that he says it will have perfect performance and absolute safety. With targets for fuel efficiency in Europe more aggressive than in the USA, and the German public pushing for higher fuel efficiency aggressive emissions targets and intolerant of excuses from German carmakers, makers like Daimler are moving very fast in this direction. Adding to pressures from the German public, they see oil prices at current levels for the foreseeable future, this adds to the urgency. Americans and Japanese makers stand the risk of falling behind. See the links to the pressure from German public opinion and the German carmakers response to this. And clearly Zetsche reflects that confidence in this interview. Daimler's Mercedes division is selling a lot of cars in China, Russia, and the Middle East. As he put it there are 400,000 millionaires in China and Mercedes are sellig very well in these markets just as the US market shrinks. And these are cars in the dollar 40,000 plus or $100,000 plus range in which Mercedes has he lead. This market will also shrink as the global economy slowsdown but the profits from this market will probably be plowed into the Bluetec and other advanced fuel efficiency programs that will give Daimler a market advantage in the longer run....

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Fuel efficiency rules require average fuel efficiency in the U.S. of 35 mpg by 2016. The debate is now on what to do for 2017 to 2025. New technology such as the P2 systems for hybrids already used in VW, Nissan and Hyundai vehicles makes a 20% increase in fuel efficiency possible. Large investments are being made to bring new technology to bear on increasing fuel efficiency significantly. Government agencies are looking at different scenarios by which the new fuel economy standards beyond 2017-2025 could be set between 47 mpg and 62 mpg. An additional factor is the reduction in greenhouse gas emissions- at 47 mpg the reduction would be 3%, at 62 mpg the reduction would be 6%. Another factor is how much the impact is on the cost of vehicles and reduced cost on gasoline. Here there is a wide range in the numbers for average mpg rules at 62 mpg- with EPA estimates at $2800-$3500 increase in vehicle cost and $5000 savings in fuel cost, Centre for Automotive Research estimates at $9790 increase in vehicle cost. The 62 mpg translates into "real world" actual efficiency of 45 mpg. In April 2011, 17 senators put out a letter of support for the 62 mpg proposal. There is a public value involved in this that is also significant- the reduced dependence on foreign oil means savings in defense expenditures in parts of the Middle East, and an economy that is less impacted by volatility in the price of oil. As this aspect of public value or benefits cannot be quantified easily even though they are significant, this may tend to be lost in the debate and the politics of fuel efficiency. For automakers there is significant marketing value in having a visible and strong presence in fuel efficient vehicles because of perception as forward looking- something that hurt Detroit carmakers in the last decade. During periods of gasoline prices at $5 a gallon this provides carmakers with an extra cushion of safety in securing car sales. Carmakers in one country such as the U.S. also have to worry about what carmakers in other countries such as Japan and Germany are doing- if the standards in the U.S. develop a gap compared to other countries developing advanced fuel efficiency technologies this poses significant risks because of the global nature of the automobile marketplace. See the group "Asleep at the Spigot" for more details on this. Many of these less quantifiable factors do not get the attention they deserve because they are significant from experience but not easily quantified. Throw into this the large unknown of what new technologies not yet developed lie ahead with a burst of effort by one country or another, which bring cost reductions at the same time - and the debate requires as much a good sense of what is the path offering the greatest advantages in years ahead than a pure exercize in numbers. ...

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Revised auto fuel efficiency standards win the support of GM, Ford, Chrysler, Honda and Hyundai. These standards would lower the average fuel economy to 54.5 miles per gallon by 2025, a decline from the initial target of 56.2 mpg. The revised proposal calls for a 5% average annual increase in fuel economy for cars and a 3.5% increase for light trucks through 2021. After 2021 both cars and trucks have to meet a 5% annual increase. Useful innovation in the new standards is to provide credits for hybrid pickup trucks, and give credits for technological advances that improve fuel economy but don't show up in EPA tests such as the one that shuts of the engine when a car is idling. Other credits would be offered for solar roof panels on electric vehicles. It includes incentives for "promoting early market penetration of tailpipe CO2/fuel consumption reducing technologies." This comes after a long period in which the U.S. lagged behind other countries in fuel economy. It could be one of the main achievements of the Obama administration, and help build a new auto industry around new technologies....

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The Obama administration is pushing for new U.S. fuel efficiency standards of 56.2 mpg by 2025. In May 2009 President Obama announced domestic car and light truck fuel efficiency standards of 35 mpg by 2016. Europe is expected to reach fuel efficiency of 60 mpg by 2020. This would still leave Europe considerably ahead of the U.S. in fuel efficiency for automobiles, but the gap would be much smaller. For the last several decades the U.S. has fallen sadly behind Europe and Japan in fuel efficiency. The perception of poor fuel efficiency hurt the automakers badly during periods of high fuel prices and when buyers were facing difficult economic choices. The automakers are beginning to grasp this fact. Mark Reuss, president of General Motors, commented that- "it's very challenging, but its upto us engineers to provide high value to the customer and support the environment." This is an issue that has serious national and global implications as it affects the future prices and demand for oil, emissions, and future economic growth. It would also bring the U.S. in line with Europe and Japan when it comes to fuel efficiency of automobiles. ...