Universal Rear-Wing Spoilers

If you don't care for any of the OEM (factory) style rear wings or the custom styles, perhaps you should look into a universal rear wing. A universal wing is one which is not designed for any one car in particular, and will fit on many different cars. Universal wings vary in style and type. You will want to be very careful when selecting a universal wing because you might end up picking one that just plain looks bad or won't fit. There are also many types with different curvatures and styles. Some resemble factory wings you might find on some cars, and others are huge and tall racing-style wings. Chances are, a universal wing will need some prepping/modification before it will fit perfectly. The benefits of a universal wing are that you get a different look, and some universal wings have eye-catching features such as super-long LED brake lamps.

Selecting a Universal Wing
When selecting a universal wing, you will want to know a few measurements:

You will probably also want to match the curvature of the trunk's top surface, and the rear of the trunk.

Links to companies that sell or manufacture universal wings
A&A Specialties
California Dream
Dawn Enterprises
Erebuni Corporation
Razzi
WingTech Aerodynamic Spoilers
Wings West

Universal Wing Pictures
Here is a selection of a few universal wings on different W-body cars:
Here is an unknown universal wing I found on a 2nd generation Buick Regal at a local dealership. It has an amazing 33" long LED brake light (longer than the LED on the 1992-93 Honda Accord factory wing)! I believe this wing would look great on the first generation Oldsmobile Cutlass Supreme 2-door due to the curvature.
Here is a universal wing shown on a 1998-up Oldsmobile Intrigue. It has a built-in LED brake light.
California Dream, Model 8L
Here is a universal wing shown on a first generation (1988-1996) Pontiac Grand Prix. It has a built-in LED brake light.
California Dream, Model 2L
Here is a universal wing shown on a second generation (1997.5-up) Buick Regal. It has a built-in LED brake light.
California Dream, Model 15L2