V50 1.6 (100ps) “18” good decision ?

Hello, I’m new on the page !!! I’ve already read many foren and was thrilled because I absolutely wanted to belong to it. Have a Volvo v50 1.6 ( 100 ps) NAJA is quite enough BUT would like to have “18” ATREUS rims. Have now “15” rims on it, am driver’s license newcomer and wanted to ask you if it would be a good decision to buy the because then the 100 ps would be difficult to bring them on the road. I also heard the higher the customs size, the higher the despeed. then I would manage the 200-203 km/h.