Which car should you buy in 2021?

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 With the new legislation around the world relatng to the CO2 emissions of cars, I think everyone has thoughts on whether to buy a diesel, petrol, hybrid or fully electric.

In this article, I will go through the advantages and disadvantage of each fuel type so you could have a better understanding of which suits you best.


Let’s start with the old diesel engine. The diesel engine has been the most popular all over the world due to its fuel efficiency. In early 2000 the diesel engine was reliable and could do many miles without having to invest in repairs.

Well, as the government introduces stricter regulation relating to CO2, diesel engine manufactured started to make the engine more complex by adding a DPF (Diesel Particular Filter)

Not just this, diesel engines were given turbos and new fuel pumps and injectors that will work at much higher pressure reducing their reliability over time.

Should you still buy a diesel?

The short answer is yes and no.


Well, no, because of the DPF, which is a filter that was given for diesel cars to capture particles produced by the engine which are considered bad for the environment. The DPF has a capacity to how many particles it can hold and needs to regenerate over time.

If you are planning to use your diesel car mainly in the city, then don’t think about buying one. The DPF hates city driving because it needs to reach a temperature of 600 degrees to be able to burn the particles it has trapped inside.

When driving in the city it is hard to be able to get the DPF to that temperature. Therefore, your DPF will not be able to regenerate and it will clog up. DPF’s are expensive to replace.

On the other hand, if you are planning to drive longer journeys outside the city. A diesel car is still the best choice for you because of its great fuel economy.


If you consider buying a car for short journeys to the shop, to drop your kids at school and everything you have to do in a city. A petrol-powered car is a smarter choice to make rather than a diesel. A petrol car does not have a DPF and is much cleaner than diesel.

A naturally aspirated petrol engine is going to cost much less to maintain than a turbo diesel. Usually, a naturally aspirated petrol engine is going to produce the same power or more than a turbo diesel engine.

The less complicated an engine is the more reliable is going to be. Even adding a turbo to a petrol engine will decrease the reliability due to additional power being applied to the engine internals.

Petrol is cheaper than diesel but this, I think might be since a petrol car will consume more fuel than diesel.

A petrol car is also, cheaper to buy and to service.

If you care about the environment, a petrol car produces fewer emissions such as nitrogen and they are much quieter then a diesel.


A hybrid car has two motors. One electric and one petrol. The two motors are combined to work as one. The interesting fact about this concept is that breaking is used to recapture energy.

When travelling at speeds up to 30mph or lower (50km) the electric motor might do all the work, giving a range of up to 30-40 mph just on electric power. Additionally, both engines can work together to give a significant low mpg.

There is a Plug-In Hybrid that has a larger battery pack. This type of hybrid will require to be plugged into an electric outlet and be fully charged. Similar to an electric car.

This will extend the range for driving just on electric power.

Fully Electric

Even the cheapest electric car can be expensive for some people. Now, electric vehicles are available in a variety of sizes.

An electric vehicle has a range of approximately 300 miles (483 km). For every day 20 to 30 miles commute, an electric car is the best choice for you especially if you do a lot of city driving

The running cost of an electric car is much cheaper. Cutting out the regular oil change and engine parts that brake one after the other. Just using electricity, sounds awesome, right? Plus, less money on car taxes

Of course, you can charge your car at home, but this is not advised as it takes a long period to charge. Way too long, something such as 30 hours, depending on the battery size

If you use your vehicle for long journeys, and, time is important to you, a diesel car is a smarter choice for you. Avoiding queuing for electricity and waiting hours to have a full charge

An electric car is the future, it protects the environment and the world resources but I do not think we are ready for this change completely

Overall, you should buy an electric car for city driving and short family trips. It will save you money in the future despite its expensive purchasing price. Even-tough technology keeps improving, we will see the rage of an electric car rising, until one day, when, we all going to realise that buying petrol or a diesel car is not worth it

If you want to be ahead of everyone, by all means, buy an electric car, you will not regret it

Motorists who want to save money on gas will demand and buy more fuel-efficient vehicles. We should not limit their freedom with more government regulations.

Jim DeMint

One thought on “Which car should you buy in 2021?

  1. The fight answer is not to buy a car. Use public transportation, live close enough to work and shopping to be able to walk. Rent a car for any necessary trips.


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