Lot more info. Is your car paid off and would getting a ZL1 mean taking on a payment? I say keep your car. But the ZL1 is an awesome car.
What's your thing. Show, drag race, Auto X or road course? If the answer is drag race then a stock ZL1 may not be what you want. If you just like to cruise and occasionally go to a track for fun but still have a warranty then a ZL1 may be your thing.