Motoring authorities in Malaysia

In Malaysia we have a Govt department called JPJ which are given the authority to administer rules over motor vehicles and licensing. This decides on laws that apply to motor vehicles ranging from motorcycles, cars, vans, trucks and buses. They have very strict laws which apply to certain aspects of motor transportation such as exhaust emissions, window tinting, car modifications and overall safety of the vehicle. In order to create laws that are progressive with the times the persons in this Govt department need to be refreshed with what new technology has emerged in the automotive field. However, JPJ is a lazy and backward looking Govt department that is not really in touch with the current technology.
Some of the laws created are down right poorly thought out before it came into force. A simple example is how the window tinting law forbids any car to have window tint that permits less than 50% visible light transmission. Malaysia is a tropical country where daily afternoon temperatures hit over 35 degrees C, having a slightly darker window tint that is able to reduce internal heat would make sense.

The JPJ also forbids the following:
- kit cars (unlike the US or UK where you can buy a kit car and assemble it)
- under carriage neon lights
- no flashing lights or strobe lights
- Big GT rear spoiler
- wide body kits exceeding 100mm in width from original size
- cars lowered to less than 50mm ground clearance.
- large exhaust
- Nitrous Oxide kits
- video viewing when car is in motion
- Window tint with less than 50% light transparency for sides and back windows, and less than 70% light transparency for front windscreen
- roll cage on street cars

If compared to the Transport Ministry or Department of Motor Vehicles in UK and US, all these items are not illegal. In fact there are thousands of kit cars or cars that custom built in UK and US. These countries have much more sophisticated understanding of motor vehicles and have less restrictions.
I don't understand why the JPJ in Malaysia need to be so strict and restrictive. It is quite obvious that the JPJ is backward looking and don't quite understand as much as their counter parts in UK and US. 

Apart from just restricting modifications the JPJ also does homologation for new cars that enter the country. Doing homologation for new passenger cars is understandable as they are able to document the specifications of the cars. However this exercise has been abused in Malaysia by many JPJ officers who took the opportunity to thrash several expensive super cars such as Ferraris and Lamborghinis. Some of these cars that would normally take only several days to complete the homologation exercise were kept by the JPJ for weeks so that the offices could take them out for joy rides and drive them at crazy speeds on the highways. This is total abuse of authority.