The debate over whether older, heavier vehicles are safer than their modern, lighter counterparts is a long-standing one among South African motorists. Many drivers firmly believe that an older car—affectionately known locally as a "skadonk"—is safer in a collision because it was "built like a tank." However, a report published by South African media outlet IOL Motoring on 6 August 2026 has brought this persistent myth back into the spotlight, explaining why these rigid, heavy classic vehicles are actually far less safe than modern cars.

To understand why the "built like a tank" philosophy fails in a real-world crash, it is necessary to look at the basic physics of automotive collisions. When a vehicle crashes, it possesses a massive amount of kinetic energy that must be dissipated. In older vehicles, the heavy steel body panels and rigid chassis do not bend or deform easily. While the car itself might look relatively undamaged after a low-speed impact, the energy of the crash is not absorbed by the vehicle's frame. Instead, that violent force is transferred directly into the cabin, and consequently, into the bodies of the driver and passengers.

In contrast, modern vehicles are engineered around the concept of controlled deformation. Engineers design specific areas at the front and rear of the vehicle, known as crumple zones, to fold and collapse during an impact. This deliberate crushing of the metal absorbs a vast portion of the kinetic energy, slowing down the deceleration process for the occupants inside. By absorbing the shock before it reaches the passenger cabin, modern cars dramatically reduce the risk of severe internal injuries and trauma to the human body.

Furthermore, modern vehicle safety relies on a dual-zone design: a soft, energy-absorbing exterior paired with an incredibly rigid passenger cabin safety cage. This safety cage is constructed using high-strength steel designed to resist deformation, ensuring that the survival space for occupants remains intact. In older "skadonks," the lack of a reinforced cabin safety cell often means that the entire passenger compartment can collapse under severe impact, or heavy components like the engine block and steering column can be pushed directly into the driver’s space.

Beyond structural design, the technological gap between older and newer vehicles further widens the safety divide. Modern cars are equipped with a suite of active and passive safety systems that were non-existent when older vehicles were manufactured. Features such as multiple airbags, seatbelt pre-tensioners, Anti-lock Braking Systems (ABS), and Electronic Stability Control (ESC) work in tandem with the vehicle's structural design to prevent accidents or mitigate injuries when collisions are unavoidable. An older vehicle typically lacks these life-saving technologies, relying solely on basic seatbelts and heavy metal.

In South Africa, this safety disparity is a pressing concern. Economic realities mean that many citizens continue to drive older, poorly maintained vehicles. While these "skadonks" are often celebrated for their mechanical simplicity and perceived toughness, they present a higher risk of fatal injury on the country's notoriously dangerous roads. The IOL report serves as a timely reminder that visual sturdiness does not equate to occupant protection.

While the fundamental physics of crumple zones and kinetic energy transfer are well-established, specific details regarding how various older South African car models compare in modern crash tests remain limited. What is clear, however, is that the automotive industry continues to move toward advanced lightweight materials that offer superior strength and energy absorption. South African motorists looking to purchase a vehicle, even on a tight budget, are increasingly advised to look past the thick metal panels of older classics and prioritize vehicles with proven safety ratings and modern structural engineering.