Buy smart or lease?

Hello, I would like to buy or lease a smart car as a second car. It is only moved on spa routes with a maximum of 3,000km per year. It should be the ForTwo with 71hp. Budget is about 9,000 euros. Does it make more sense to buy a smart than used car or is it now comparatively cheaper to lease a smart car? The FA rental is left out (I am FA). Optional equipment would be: Brabus sports package Cool & Audio package Line Passion or Prime as possible Bodypanels in we iß oder schwarz LED- & Sensor-Paket Ablage-Paket if applicable twinamic What should I pay attention to? Are there currently cheap dealer deals or dealer-wide smart deals?