2025 Teknikens Varld Summer Tyre Test
The Goodride ZuperEco Z-107, the least expensive tyre in the test by a considerable margin, proved the old adage that "you get what you pay for." While surprisingly competent in comfort metrics and relatively quiet on smooth surfaces, the tyre's critical safety deficiencies were impossible to overlook. It was the only tyre to demonstrate unstable, unpredictable sliding tendencies combined with severe understeer, making the vehicle genuinely difficult to control in emergency situations. Its catastrophic performance in the moose test (7 km/h slower than the next worst tyre) led to a 10-point penalty in the final scoring. Despite some acceptable objective measurements in other categories, the testers strongly advised avoiding this tyre due to its dangerous handling characteristics.

