McLellan joined General Motors in 1959 after graduation from Wayne State University.
He was preceded as Corvette chief engineer by Zora Arkus-Duntov, who he worked briefly with prior to Zora's retirement. He is responsible for creating the C4 Corvette.
He was followed by Dave Hill, who oversaw completion of the 1997 C5 Corvette design that McLellan started.
Dave McLellan had two sons and was married to Glenda McLellan. One son followed in Dave's footsteps becoming an engineer and receiving an education at the Georgia institute of technology.
Dave has also written a well known book about Corvettes.