I drive a 1992 Mercedes 300TE; white on navy blue (vinyl). It has an Alpine 7894 CD player and a pair of Alpine coax speakers in the dash; stock in the rear doors. I intend to install a McIntosh four channel amp and a pair of ADS coax speakers in the doors. Probably will not bother with a sub as it is difficult to do in this station wagon.
Ladyfriend drives a 2002 VW Jetta GLS TDI wagon with optional VW stereo; not bad but adequate. Car is too small for anybody larger than 5'9" in my opinion.