01. ​Cooling is a critical aspect to address in rally cars. To prevent the radiator from shaking and ensure durability, mount it on rubber or polyurethane bushes. Additionally, safeguard the radiator against clogs caused by unexpected elements like insects and protect it from potential damage caused by rocks and mud.

02. Pay careful attention to the electrics. Reliable waterproofing and secure connections are essential to avoid troubleshooting electrical issues in challenging conditions. Ensuring dust and grime are kept out is crucial for maintaining optimal electrical performance.

03. Prioritize under-body protection. Line the wings to shield the bodywork and equip any components that may catch on rough terrain, such as spring-hangers, with skid plates. Take extra care in planning the protection of the sump guard and gearbox.

04. Give proper attention to gas tanks. While a long-range tank can be beneficial, it requires meticulous planning to consider weight implications and ensure secure mounting. Preventing vibrations and leaks from unions is crucial for trouble-free performance.

05. Filters play a vital role. Install substantial fuel filters to safeguard the engine from water and debris, as no rally car should venture far without them. Efficient air filters are equally important for optimal engine performance.

06. Ensure axles have the right gear ratio and bearings. Often overlooked, axles are susceptible to sudden failures due to the punishment they endure. Regular inspection and repairs can save significant time during an event.

07. Prioritize careful planning for the steering and suspension systems. Emphasize high-quality components for durability and efficiency, as these systems play a crucial role in maintaining control and performance.

08. Consider upgrading and protecting the brakes while adhering to event regulations. Compliance with governing bodies such as the FIA and FIVA is important when making modifications.

09. Enhance the comfort and efficiency of the car's interior, as it greatly impacts the crew's experience. Choose appropriate seating, navigation equipment, interior lighting, and other refinements to provide added comfort during the rally.

10. Pay meticulous attention to the engine, transmission, and driveline, as they form the heart of the car. Discuss all relevant matters with the competing crew, including flexible exhaust systems to prevent damage, and strike a balance between performance and reliability to achieve optimal results.