ooo000HITMAN000ooo said:
			
		
	
	
		
			i want to look at both mercedes and bmw 
		
		
	 
 If that was directed to my request for more information, I need you to be more specific.  
Are you only looking for a sedan?
Must it be german?
Must it be RWD, FWD, or AWD?
Does it have to meet any performance criteria?
Are there any options you have to have?
Must it have a warranty?
How many miles are too many?
How much interior room do you need?
Must it be an automatic?
Do you have to have a NAV system?
There are numerous other questions I could ask, but you get the idea.  Figure out what you want.  Until then, its pointless to debate the merits of particular cars for your as of yet unknown desire.