Benz developed and patented a reliable two-stroke engine, a crucial step towards creating a self-propelled vehicle. This engine was more efficient and compact than previous designs.

The Benz Patent-Motorwagen was a groundbreaking vehicle that incorporated several innovative features, including a three-wheeled design, a gasoline-powered engine, and a chain-driven transmission.

Benz made significant improvements to the ignition and cooling systems of his engines, enhancing their reliability and performance. He experimented with different types of carburetors and cooling methods to optimize engine efficiency.

Benz continued to refine the chassis and suspension systems of his vehicles, improving their handling and ride comfort. He explored different suspension designs and chassis materials to enhance vehicle stability and durability.