In this comparison, we are comparing a tyre from a manufacturer from Japan (Bridgestone) against a tyre from a manufacturer from Austria (Semperit). Semperit is a brand that belongs to the Continental group. Generally, Bridgestone summer tyres are slightly better rated (86%) than Semperit (47%). In this particular case, the Bridgestone Potenza Sport has a better rating of 91% compared to 47% of the Semperit Speed-Life 3. Important for this comparison is also the Autobild 2025 225/40 R18 test, where both the Potenza Sport and the Speed-Life 3 were tested. When it comes to comparison, eu labels can be also interesting - 93% of Bridgestone Potenza Sport has A wet grip rating, whereas 100% of Semperit Speed-Life 3 has B rating. We also know where Potenza Sport is made - Poland/Hungary.