The DB4c are special DB4s offered by Motocorse Japan. Only 50 units produced. Differences from the normal DB4 include:
- 41mm FCR flatsides
- motor bored out to 944 cc
- Corse titanium full system
- Marchesini 5 spoke wheels
- Acalantra seat
- gold anodized frame, swingarm, rearsets, and triples
- DB1sr red paint scheme