There are several very good and practical reasons for this. First, it allows transportation and reliable transportation to your destination quickly. Second, modern engines are more fuel-efficient in addition to technological advance which saves you thousands on fuel costs. Thirdly, they are also intended to produce less pollutions which will provide a better life for the environment. Moreover, automobile engines are designed to provide years of reliability and longevity, resulting in less servicing and hence a lower life time running cost. Lastly, a robust service network and availability of spare parts makes servicing and repairs both accessible and cost-efficient.