Subaru for me. My first awareness of rallying came because of a two minute tv report on the controversy at the 1995 Catalunya Rally, with Colin McRae refusing to slow down and gift the win to team-mate Carlos Sainz, despite team officials standing in middle of the road to try to "persuade" him. (They managed to convince him to take a time penalty in the end, but the sense of injustice forced me to watch the RAC Rally coverage and that was enough to get me hooked.)
To this day, if you say "rally car" to me, the first image that appears in my mind is a mid-to-late-90s-liveried Subaru Impreza.