ciruclate + jag excellent advice
I think people generally 'over-estimate' their computing needs, may be because they lack knowledge or may be because they just don't feel concerned enough throwing away few hundred extra bucks.
Tech side of the OP's question aside, check this out form Lamborghini 670LP4's brochure (about sound of its exhaust):
"The heavy rumble of a stormy night, through the trumpeting of mighty elephants, to the roar of a raging lion."
Won't you agree that you can't something like that in a Ford Mondeo's brochure?