Thanks for responding. Your words say daily driver, but your attachment says time attack.
I like the splitter too, but it would be an encumberance around curbs and speed bumps. That white airdam alone, with a notch in the middle to create a central jet in the underbody would be more livable.
If you do have a splitter like that you'd want a difusser to match.
It doesn't show at that angle, but the sidewalls of the difusser on the Corvette start inside the tires and bell out to the outer face of the tires. This IMHO create an exponential horn on the inside and plows the wheelwell turbulence outward. The Lotus' fans out, but only to half the tires width and they're flat.
Consider Aerocivic-style side fences or wheel spats. Or front-wheel air curtains.