There are 5 Honda Civics to choose from:
1. Regular - can have rear discs or drums for the base model
2. Si - sport version, 2.4 naturally aspirated 201 hp!
3. Hybrid - rear drum brakes, less horsepower
4. Natural Gas - rear drum brakes, different engine that accommodates natural gas, therefore less power
5. HF - ?, rear drum brakes
What is the significance of the HF?
Read more: What is the Honda Civic HF?