Driven by me with our shop's civic hatch. 4 male adults were sitting in the car at the time(including myself).
From the look of it, I was doing approximately 1min 21sec per lap. I am sure I could get it down to sub 20sec with driving by myself without any passangers.
Civic's modification is limited to suspension work aside from ls integra non vtech engine. (around 138 hp)