If you just want to have a taste of luxury cars, try to lease one first. It won't cost as much as buying in the first few years, at worst, you won't be stuck in car you don't like or not comfortible with for many years.
There is one car with huge discount now, MB E350, it has $10000 manufacture cash - you probably can get 14000 off of MSRP.
BTW, I don't understand why so many negative comments on your simple question. Those people really need to get a life. It's really no big deal to buy a MB or BMW, or whatever. It's just a car. Maybe it's a huge deal to them after all.