Just in case you need a little incentive to shave off those extra pounds, this article might do the trick -- especially if you drive a sports car. All new cars now must carry a warning label that states the maximum weight (combined passengers and cargo) that the car can safely carry -- and these warnings have revealed that many two-seat sports cars aren't safe for larger people.

Cars like the Mazda MX-5 Miata and the Chevrolet Corvette, for instance, don't meet safety standards if both driver and passenger weigh more than 200 lbs each. Larger vehicles, like a seven-passenger Dodge Grand Caravan, aren't safe to carry even six adults who all weigh 200 lbs or more. And, while your car probably won't break down if you exceed these limits, car manufacturers may not be accountable if their vehicle were to malfunction while it was carrying too much weight.

So if you're a big family, or regularly cart around your (even slightly) overweight friends, it might be time to hit the gym -- before you do damage to your ride.