Comparison: Petlas Imperium PT515 vs. Westlake Z-107 (2026)

In this comparison, we are comparing a tyre from a manufacturer from (Petlas) against a tyre from a manufacturer from China (Westlake). Generally, Petlas summer tyres are slightly better rated (50%) than Westlake (29%). In this particular case, the Petlas Imperium PT515 has a better rating of 51% compared to 23% of the Westlake Z-107. The first tyre test of Petlas Imperium PT515 was done in 2019, compared to 2023 when was the Westlake Z-107 first tested. Important for this comparison is also the ADAC 2023 205/55 R16 test, where both the Imperium PT515 and the Z-107 were tested. We also know where Imperium PT515 is made - Turkey.