Leasing the car will get you into a very nice car but at what cost? How much is leasing going to cost and then how much will they want when you buy it? What will it all cost in the end?
Buying a decent used car, get a mechanic to check it out. A reliable second hand car that can get you from point a to b. Buying the car is not the only cost to consider. Petrol, insurances etc.

Good luck with your decision.