In this comparison, we are comparing a tyre from a manufacturer from (Radar) against a tyre from a manufacturer from Holland (Vredestein). Generally, Vredestein summer tyres are slightly better rated (55%) than Radar (24%). But when it comes to comparing Radar Dimax R8 and Vredestein Ultrac Vorti, the rating is the same - 0%. The first tyre test of Radar Dimax R8 was done in 2017, compared to 2016 when was the Vredestein Ultrac Vorti first tested. Important for this comparison is also the Autobild 2020 245/45 R18 test, where both the Dimax R8 and the Ultrac Vorti were tested.