IMHO OE tires are so expensive because car manufacturers get them as cheap as possible.
Individuals who want the same experience and performance are sponsoring the car manufacturer.
According to CR ECS are 40K tire with excellent noise characteristic, G-MAX RS are 45K tires (apparently UTQG difference that CapriRacer mentions is meaningful) that is noisier than its "big brother" and less sporty (worse handling score). Both have the same wet breaking and hydroplaning scores (but not necessary results as they are not published). Both share 75 overall score.
We have G-Max RS on 2011 Volvo S40 and they are decent summer tires.
Krzyś
Individuals who want the same experience and performance are sponsoring the car manufacturer.
According to CR ECS are 40K tire with excellent noise characteristic, G-MAX RS are 45K tires (apparently UTQG difference that CapriRacer mentions is meaningful) that is noisier than its "big brother" and less sporty (worse handling score). Both have the same wet breaking and hydroplaning scores (but not necessary results as they are not published). Both share 75 overall score.
We have G-Max RS on 2011 Volvo S40 and they are decent summer tires.
Krzyś