Audi A4 Cabriolet

The 2008 Audi A4 Cabriolet is not a cheap car to buy: It costs nearly $40,000 to start, and once you start adding options the price climbs fast enough to give you altitude sickness. Still, it's a good-looking and fun car, and with good fuel economy from each gallon of premium, at least you'll only have to worry about your car payment, and not your gas mileage, gas card or gas prices.