Thiruvananthapuram: Despite widespread illegal alterations in mini vans that affect vehicle balance, the Motor Vehicles Department has not taken action. Most of these unlawful modifications are being carried out on a model frequently reported by drivers for brake issues. Road safety experts say such unauthorised fittings are a major reason for loss of control, especially on sharp curves.

Add-ons like rooftop AC units, luggage carriers, decorative roof fittings, lights, and sound systems increase weight on the upper portion of the vehicle. Heavy side glass panels and hardwood interiors further contribute to instability.

In some cases, the roof is modified to increase the vehicle’s height, which worsens control on bends. After such alterations, vehicles are put on the road with loads that suspension, steering, and braking systems are not designed to handle. These irregularities can be detected only through weight checks, but there are no proper systems in the state to verify whether such structural changes are safe.

Most of these illegal modifications are being done on a model approved in the 1990s, when safety norms were less stringent. However, drivers note that vehicles maintained as per company specifications offer better control.

While the Motor Vehicles Department had conducted special inspections to remove unauthorised modifications in tourist buses, similar checks have not yet been extended to mini vehicles.