50ccm but what?

Hello, I’m 16 and I’m just doing my car driver’s license, I guess I’ll be ready in 1-2 months. Anyway, I want to be 18 and of course I want to ride a 50cc bike up to the car etc. I want to ride something sporty. But I don’t know -/+ 0 of all this stuff. So I’d love to get some information. How many KMs should not be exceeded when buying used cars so that they run for at least 2-3 years.(I really don’t have a P lan ) Actually I don’t want a scooter. I’d rather have something in the form of the Suzuki GN250. I know this isn’t so sporty now, but I like it. But my Google searches didn’t give anything.. a few tips or suggestions about this are super Suzuki GN250 For scooters I thought about an Aprilia SR50 or a Yamaha Aerox, since I would like to represent the sports part. Generally a few informations on what I should pay attention to when buying would be sup He! Thank you Henni