With a tight budget of under 4,000 euros and the need for a car, the selection process becomes more challenging. Rising prices for both new and used cars mean that buyers are often limited to older models with high mileage. While some models still stand out in this price range, careful consideration is needed to avoid future financial issues. The key is to focus on reliability and practicality, as hidden costs can quickly add up. Under 4,000 euros, most cars available are over 12 years old and have accumulated more than 150,000 kilometers. It is advisable to look for vehicles with less than 200,000 kilometers and ensure that major maintenance work has been recently completed, supported by invoices. Components like the distribution, clutch, and filters play a crucial role in determining whether a car is a good deal or a future financial burden. For example, replacing a distribution kit with a water pump can cost between 500 and 1,200 euros, depending on the model. For daily city driving, gasoline engines are often the most practical choice. They are better suited for short trips and have lower maintenance costs compared to diesel engines, which can face issues with the EGR valve and particulate filter. Diesel engines are still relevant for long-distance drivers, provided their maintenance history is well documented. City cars or versatile models with wide distribution, such as the Renault Clio 3, Peugeot 207, Citroën C3, or Dacia Sandero, are often found in large numbers on the market. These models offer a good balance of size, cost, and functionality for urban use. For those who need more space than a city car provides, compact models like the Fiat Bravo II can be a good option. This model, often overlooked, offers good performance, fuel efficiency, and a spacious interior. Similarly, the Citroën C4 II and Peugeot 308 I are suitable for long-distance driving and offer a balance between comfort and fuel consumption. Family cars and ludospaces, such as the Dacia Logan MCV, Peugeot Partner Tepee, and Citroën Berlingo II, provide ample space and are accessible within a tight budget. For large families, minivans like the Renault Scénic III or Opel Zafira with seven seats remain available, though they require strict maintenance due to high mileage. Ultimately, the best choice is the one that best fits the buyer's specific needs and usage.