I am not doubting that there is a difference, nor am I even doubting that the Aston is of higher quality. I am pointing out that while manufacturing method is

I am not doubting that there is a difference, nor am I even doubting that the Aston is of higher quality. I am pointing out that while manufacturing method is objective, quality is not. You are talking about two different things. Better statements would be "Astons are higher quality than Teslas" (subjective), or "Astons are made by hand and Teslas are not" (objective).