Ha. Use 4 wheel steering and rake the whole body.
Driverless race cars to cope with the G forces 
The horizontal split wing reduces body roll, but you would still corner faster if the outward flap moves up fully too; more pressure on the outward wheels, faster cornering.
You would not want the split. You want the whole wing helping you through the corner.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
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