* C10: This refers to a series of full-size Chevrolet pickup trucks produced from 1960 through 1987 (with various redesigns and model year variations within that span). They were larger, heavier, and typically more powerful than S10s. Think of them as the workhorses of the Chevy truck lineup. The C10 designation usually indicates a half-ton model; there were also heavier-duty C20, C30, etc. versions.
* S10: This designates a series of compact Chevrolet pickup trucks produced from 1982 through 2004. They were smaller, lighter, and generally more fuel-efficient than the C10s. The S10 was designed to compete in the growing compact pickup truck market. There was also a GMC version called the Sonoma.
In short, the main difference is size and class: the C10 is a full-size truck, while the S10 is a compact truck. This impacts everything from engine size and power to cargo capacity and overall dimensions.
