What are the two types of rims that currently exist?
Active and passive safety
Explanation
**Rims** are an essential part of a vehicle's wheels and are divided into two main types: **steel** and **light alloy**.
- **Steel rims**: They are made of steel and are more common in mid-range and low-end vehicles. They are more economical and resistant to impacts, but they tend to be heavier.
- **Light alloy rims**: They are made with a mixture of metals, such as aluminum or magnesium, which makes them lighter than steel rims. This helps improve the vehicle's performance, as a lower unsprung mass can enhance maneuverability and fuel efficiency.
There are no **heavy alloy** rims, as the purpose of alloys is precisely to reduce weight without compromising strength. Therefore, the correct options are **steel** and **light alloy** rims.
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