Brenda Wallace bought her 1970 Chevelle SS396 new from Wright Chevrolet in Clarksville, Tennessee, and never let it go. That single detail puts her car in rarer company than the horsepower numbers alone suggest — Chevrolet built just 2,144 of the top L78 version that year, and one-owner survivors with documented history are harder to find than clean examples of either engine. Here’s what made a genuine 1970 SS396 special, and why the “396” badge doesn’t quite mean what it says.