Editing Quad 4 engine (section)

===Quad&nbsp;8===
In an episode of [[MotorWeek]] from early 1988, a photo is shown of an Oldsmobile V8 engine developed using Quad&nbsp;4 technology. The engine is called the Quad&nbsp;8.<ref name="aw-1988"/> What was shown was apparently a mock-up of the engine, possibly built by Feuling Engineering.<ref name="hotrod-jan2023"/><ref name="cyclenews-apr2002"/> The engine made an appearance at a Specialty Equipment Market Association ([[SEMA (association)|SEMA]]) show in Las Vegas, but did not go into production.<ref name="hagerty-apr2020"/> The Quad&nbsp;8 was featured in an article in the June 1993 issue of [[American Rodder (magazine)|American Rodder]] magazine.<ref name="ar-jun1993"/>