will a 1989 Mercedes-Benz : SL-Class be a collector car?

probably not sorry. collectible cars are usually the ones that revolutionized the market. like the ford model t, the original beetle, mustang, etc.

1989 mercedes coupe 450 slc with a soft top and a hard top then 1990 560 the same model last of these models will be a collecter items the v 8 350 models of 87,88,86 also grab one if you can it will worth at least 100 grand in 2012.