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Just How Big an Engine is Big Enough?

By Edited Feb 21, 2016 0 0

If you want power then you are going to pay dearly for it

If you're looking for a new car, then engine size might be on your list of factors to consider. Cars come with various engine sizes, and choosing between them can be difficult. A car's engine size is calculated by how much the pistons inside the cylinders of the car's engine can displace. The technicalities aren't terribly important. What is important are various other factors. In general, the bigger an engine is, the more powerful it will be. So if you're looking for pure power, then get the biggest engine you can afford. However, there are other factors in the decision that you might want to consider when thinking about how big an engine to buy...


Bigger engines are more expensive. Which makes sense, since bigger engines are more powerful and use more materials. The difference between choosing a car model with one engine size and the same model with the next engine size up can amount to thousands of pounds. If you're not looking for immense amounts of power, particularly if you don't do much motorway driving or mountain driving, then it's probably not worth your money to go for the bigger engine. Don't pay for anything that you're not going to use...

Fuel Economy...

Bigger engines use more fuel. It doesn't matter if the engine is petrol or diesel, a bigger engine needs more fuel because it produces more power. If you spend a lot of time driving and are liable to be buying a lot of fuel, then a smaller engine may make more economic sense for you. Especially with the trend for rising fuel prices, a bigger engine can end up costing not just more money to buy, but more money to run as well. However, you do need to take into account the load that you're driving with. If you regularly drive with a full car of passengers or pulling a trailer, then a more powerful engine is going to end up being more economical when it comes to fuel. A smaller engine will take more fuel to pull a larger weight than a more powerful engine will. So keep that in mind.

Tax and Insurance...

            Most governments nowadays charge higher tax rates for more powerful cars. The idea being that bigger cars have a larger impact on the environment and bigger fuel consumption, and are more expensive, therefore they should be taxed more highly. Insurance companies do a similar thing. They charge higher rates for bigger engine size due to two factors. The first is because the car probably has a higher market value, and will therefore cose more to repair or replace than a car with a smaller engine. The second is that drivers with more powerful cars are a higher risk, they can attain higher speeds and are more likely to hit those speeds, and are therefore more likely to be in accidents or to have legal problems dues to speeding tickets. This may seem a little unfair, but the statistics say that car power is linked to accident rates, and insurance rates are based on statistics... You might want to take these things into account when deciding on engine size.

Environmental Impact...

            The larger the engine size of a car, the bigger the impact it will have on the environment. Bigger engines both use more fuel and produce more emissions. If environmentalism is important to you, then you will want to choose the smallest engine possible that satisfies your requirements. This is also a factor in how heavily your car will be taxed, since most governments place higher tax on vehicles with larger environmental impact



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