Need An Opinion

[SundownTL3.2]

ok so i heard about the new law the gov't is going to pass that if u have a vehicle that gets 18mpg or less... the gov't will pay 4500 for a new car.

so..............

i want to be in to car audio but i want good mpg's with rising gas prices again so......

i am stuck between two vehicles

A cadilac stx

cadilac cts

or ford explorer.

i dont kno what to get guys,.....

if i get a cadillac i wil do a really nise sound quality system but at the same time... gets loud.

if i do a ford explorer....

i will get 150+

so...... idk i need advice guys