4th-generation Toyota Prius fuel economy raises diesel debate

By Peter Chubb - Sep 24, 2014

The new 4th-generation Toyota Prius fuel-economy has been a hot topic of conversation, and the general consensus is that it will have a return of 55 mpg, although this is not the official figure. However, there is new information suggesting that figure could be more than 60 mpg.

According to Automotive News, the next-gen Toyota Prius could come in two version, one of which will be classed the Eco. The standard model will come with the same nickel-metal hydride battery pack like current models, whereas the Eco model is rumored to make use of li-ion battery.

4th-generation Toyota Prius fuel economy

This rumor is not a new one, but does give us food for thought, although it raises the diesel debate once again. Small diesel engines offer an even better return than this, which is why the Prius has not been as widely accepted within Europe.

Some drivers have even been wondering why Toyota does not offer a clean-diesel/hybrid model, as this would offer an even greater return? There are already a huge number of vehicles running on diesel getting between 50 and 60 miles to the gallon, so it seems strange that the likes of Toyota is embracing a technology that costs a lot more for the end-user, as well as not being anywhere near as popular.

The holy grail of car technology would be for a society of electric vehicles, although not for that electric to come via fossil fuels, but we are still decades away from that dream.

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  • jjaayyzz

    Here in the UK the government as well as Diesel car advocates and owners had to learn the hard lesson that Diesel technology was not clean as they were led to believe. It was discovered recently that diesel particulate filters operate optimally in test conditions but under normal running, they let out emissions way above acceptable levels. We will see the results of these recent findings trickle its way into car tax grades. Actually, I am surprised that the author of this article is unaware of this and is still talking about a diesel debate – therer is no longer such a debate, Diesels lost.

  • allannde

    There are several reasons for favoring a hybrid power train:
    1.Diesel engines are not as useful or economical in city driving as hybrid power trains.
    2. Properly built diesel engines are heavy and very expensive to make because of the necessary high compression ratio to ignite the diesel fuel.
    3.The combination of electric power for torque at low speeds and petrol power at high speeds is both economical and an efficient use of the most available torque of a petrol engine.
    4.The hybrid power trains have proven to be very reliable.
    5. Diesel fuel is usually substantially more expensive.

    • Tarzane

      Diesel is 3-4% cheaper here 🙁