pinnacle 頂点

pinnacle は山頂、頂点、絶頂期などの意味。 0:21 the car itself is gorgeous. it's supposed to be the pinnacle of automotive luxury. and Bugatti is very very proud of it. 超高級車の最高峰

The Bugatti Chiron is the world's fastest road car https://www.youtube.com/watch?v=hOFbNHEHD6Q  0:31 race across America dubbed the world's toughest bicycle race is the pinnacle of ultra-cycling.耐久ロードレースの極めつけ
Miles of pain, the price of glory
https://www.youtube.com/watch?v=yaWNlCsEWrk  0:50 this was absolutely the pinnacle (of my career.) 王室の婚礼でハープ演奏が出来たのは私の生涯で最高の出来事でした。
Harpist dishes on royal reception