For a one-car household, I frankly can't think of anything better than my goofy little, bugeyed turbo-charged bright blue Subaru WRX Wagon. It hauls the dogs, it haus my bike, it even hauls (some) furniture! More importantly, it hauls ass while hugging the curves like a mother**&^*&!
If they offer the souped up version in a couple of years (300 hp) in a wagon, that would be even better!
Now, if we are talking more bucks, I would probably add a top-of-the-line Miata to my stable (assuming moderate money) or, for unlimited funds, a Maserati Spyder!