# Do modern Formula One cars produce enough down-force to drive upside-down?

For example, if they were driving at top speed through a long tunnel, could they transition to and stay on the ceiling?

-
The applied downforce is there for a reason, to keep it from going airborne (amongst other reasons). You also need it when driving upside down. The fluid dynamics is not really different (assuming constant density). Thus, you need at least $2g$ more down-force than strictly necessary under regular conditions. –  Bernhard Jan 11 '13 at 6:59