The suspension system of a vehicle is responsible for providing a comfortable and safe ride, and suspension springs play a vital role in this. The primary function of suspension springs is to support the weight of the vehicle and its passengers while also absorbing and distributing the impact of bumps, potholes, and other road irregularities.

Without springs in the suspension, the vehicle would bounce uncontrollably and make it difficult for the driver to maintain control.

While you can still drive your vehicle without a broken spring, it is not recommended. This is because driving without a spring can cause issues with alignment and lead to uncontrollable bouncing, which may impact the ability for the driver to control the vehicle

If you identify a broken or missing spring in your vehicle's suspension setup, it is recommended that you get it repaired or replaced as soon as you can.

There is no one "most popular" suspension spring, as the best option varies depending on the specific vehicle and its intended use. Coil suspension springs are the most common type of suspension spring and are used in many vehicles. They are versatile and come in different shapes and sizes to accommodate a variety of vehicle makes and models.