For a car of that size,I would suggest upping the high frequency output from 5.25 inch to 6..5's or possibly doing a pair of 6x9 with 6.5's. If you're gonna have at least 2 12's in your car then you're gonna want to even the highs out The audio store that I worked at did not sell the MB quartz line, but I have seen really nice systems worked out with the Kicker Solobaric series as well as the Rockford Fosgate competition series. For your mids and highs, the Inifinity Kappa series as well as the eclipse line will give you excellent clarity and are pretty durable. They're a bit more expensive than the rest,but will last much longer.