Ultimately, whether a diesel, or petrol or even a hybrid vehicle is best for you will depend on your individual needs and driving preferences.
One of the biggest things to bear in mind when making this decision, however, is your regular driving habits. Diesel vehicles are fitted with something called a diesel particulate filter (DPF). The DPF is part of the vehicle’s exhaust system, and is designed to clean engine exhaust gases before they enter the atmosphere. The DPF is designed to clean itself by ‘burning off’ the excess soot particles when it gets hot enough – typically after 30 minutes of driving at around 45mph. If you don’t reach those speeds for long enough the filter won’t be able to clean itself and a warning light will come on.
Therefore, if you are typically a city driver or one that doesn’t do a large number of miles in a single journey then a petrol or hybrid vehicle may be more suitable for you.