Originally Posted by OldScoolCamaro
...my take. Milford proving grounds yields a 3 second gain of the Z/28 over the ZL1 per lap as reported by Chevy. I have no idea what the layout is. My thoughts are. A short track, with many tight turns and short straightaways will give the Z/28 an advantage. A bigger track, with wider corners/radiuses and longer straightaways will give the ZL1 the advantage. Inherently, these cars are not designed from the get go for the quarter mile.
Milford proving grounds is a 2.9 mile road course with 20 turns......
Search Milford MI on Google maps, use the satellite option and look about 2 miles to the left of Milford. You will see numerous tracks layouts with building......You are now looking at the GM proving grounds......