I've seen that happen, too.

Not exactly a pretty sight, sparks coming out from underneath another car at 160 km/h...

Me, I've enjoyed the handling benefits of mild lowering (1" - 1.5"), bt the headaches (yes, I've split chins and broken exhausts... so sue me, I wasn't the one who lowered the car... ) weren't worth it.

And ever since getting the Lynx and getting onto the track, I've seen the benefits of having both a stiff suspension and good suspension travel, as I've seen quite a few cars get knocked out of control because they were too low or stiff.