Your vin number should be on a plate that is riveted to the post between the front and rear doors. Also your number should be on the windshield frame, driver's side, half way up. The number you need for "serial number specific" parts would be the last 6 numbers.
1994 MB E320 Coupe (199,500 mi)
1992 MB 190E 2.6 (173,000 mi)
1983 Porsche 911SC (148,000 mi)
2004 Volvo V70 2.5T (198,000 mi)
President of CT/Westchester Section