Which abbreviations do you need to know? You are right, some of us just take it for granted that people know what we mean. I am sure I have done this myself and not realize it.
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