Complex sentence: With Sinclair's new specifications in hand, Ogle worked on a three-wheeled design dubbed the C5, which bore similarities with the earlier three-wheeled Bond Bug--another Ogle design.
Split into simpler sentences: With Sinclair's new specifications in hand, Ogle worked on a three-wheeled design dubbed the C5. It which bore similarities with the earlier three-wheeled Bond Bug--another Ogle design.