Dream setup..... hmmmm. I'd pretty much say 3 barely clothed blondes, seated in a super sports car.
Honestly, there isnt a dream car setup. It varies from person to person and every genre of music is best suited to a different kind of speaker. Once could get highly technical and complicated, but somewhere we forget why we're doing all this and forget to listen to the song....
The company has about 5 cars that i drive around, and personally i'm not a sound pressure level guy, those those are also the people we cater to.
I listen to a lot of classic rock and afrojazz and i prefer the sound of Infinity components. However Firoz, our Mumbai car audio manager pooh poohs anything but JBL (not for the most obvious reasons lol) because, well he listens to House Music. Boom Boom Boom and another Boom. Boom=JBL.
In my lancer i have a fairly simple setup (dont say yeah right) i use infinity kappa components in the front, Infinity kappa 6X9s with emit, 2 JBL amps (one 4 ch ad one 2 ch) and a JBL GTO bass tube in the back, with a nice alpine Head Unit.
Ghar ki murghi, daal barabar. lol