level="single", 
         count="chapter|sect1|sect2|sect3", 
         format="1.1.1.1. "

1. Alfa Romeo
1. Bentley
2. Chevrolet
1. Dodge
1. Eagle
2. Ford
1. GMC
1. Honda
1. Isuzu
2. Javelin
3. K-Car
4. Lincoln
2. Mercedes
3. Nash
1. Opel
2. Pontiac
4. Quantum
1. Rambler
2. Studebaker
2. Toyota
1. Um, is there a car that starts with "U"?
3. Volkswagen