Done
http://www.imcdb.org/movie_166924-Mulholland-Dr.html
the trunk part of a black limo (**) not added, since you said before "Could certainly be a 1998 Lincoln Town Car (Stretched) like this one showing up earlier in the movie" and this Limo is already listed http://www.imcdb.org/vehicle_42585-Lincoln-Town-Car-Stretched-Limousine-1998.html