I personally don't understand why anyone would want a 6 cyl camaro.
Actually ... I'll go one step further ... I don't understand why anyone would want a stock V8 camaro either!
Kidding!
Actually I remember seeing a beautiful 68 or 69 camaro on a website once that someone had done up ... and from memory it had a skyline engine in it. I know it's not a 4cyl ... but it challenged my thinking at the time.
Then there is this amazing piece of engineering:
http://www.dieselpowermag.com/features/chevy/1102dp_1969_cummins_powered_chevy_camaro/
Next thing their will be a hybrid or ... dare I say it ... an electric.
Oh well ... it's all good ... more gas for me to burn!