190D 250D s320 cdi Turbo?
 

Hey guys planing on going for a MB Diesel older model since they are the ones that have the reputation of being undestructable. but not sure which way to go Turbo/naturally aspired. the 190D or 250D probably 1984-1993 genertation. im also considering the auto s320 CDI 2000-2004. but dont know the difference in terms of reliability/maintenance cost/parts cost gas mileage. euro version not the north american version since they are virtually impossible to find and only come in auto which i dont want. i was also considering the older generation BMW diesel the 5 series or 3 series like the 325 tds 318 tds td 525 1983-1995 etc.. any insights will be appreciated.