I'm no fan of wings on a FWD car, however, low wings and spoilers do serve a purpose at high speed, and I don't care what kind of car you drive. The way cars are designed, they inherently look like a mis-shaped airplane wing going through the air backwards, with a flat bottom and a pointed nose. Up to speeds of around 90 mph, this shape helps driveability, the steering wheels maintain grip, and heavy steering input at those speeds is not required, which is why you can change lanes at highway speed with less than 30 degrees of steering wheel rotation. However, above those speeds the downforce on the front of the car becomes higher than the those forces found in the rear of the car, mainly caused by the turbulence created as the air suddenly has no surface to be guided by and act upon. This turbulence is what keeps an airplane airborne, it's called lift. So, again, no matter what kind of car you have, at those high speeds, something needs to be done to cancel out the lift created by the natural shape of the car [sedan, coupe, hatchback, roadster, doesn't matter], and this is where spoilers and wings come into play. A spoiler just acts to move the turbulence point to a place directly behind the car, where it will still create drag, but not lift, whereas a wing seeks to create a turbulence point [turbulence is used to refer to a low pressure region if you haven't picked up on that already] under the wing elements, to either cancel or exceed the force of the natural low pressure region on the car body. This keeps more weight on the rear of the car and keeps the car, any car, from oversteering at high speed. A prime example of this would be the Audi TT and the VW New Beetle. Both of these cars were originally released free of aero devices, until unstability at auto bahn speeds where discovered and both companies issued a recall to install a spoiler free of charge to eliminate this potentially dangerous threat to their customers at such risk.

So what's all this mean to Joe RiceBoy? Not a thing, most factory spoilers have no noticable effect on aerodynamic handling until about 65 mph, and most aftermarket wings have no real effect until about 85 mph [unless he's got it adjusted to maximum rake, at which point he starts killing HP with drag at 15mph...], and so have absolutely negligable effect on medium/low speed cornering.

As far as race cars go, the choice to run a wing or not greatly depends on driver ability and preference, straightaway speed importance and the stock handling characteristics of a particular body style.

Should everyone go out and buy a wing? No, it's your money. Should I bash every street running FWD for having one? No, it gives me a place to set my drink. Should you re-evaluate their use a little? Yes, wings on stock-bodied race cars are not for turning help [except nascar, but they use tape on the front to adjust balance as well, not really an option in other series where they use real, honest OEM bumpers...], they're for straight-line stability.