The air-cooled Porsche 911 market ran one of the more spectacular appreciation curves in modern collector car history. Cars that traded for twenty to thirty thousand dollars in the early 2010s reached six figures by 2018 and, in certain configurations, multiples of that by 2022. The 1973 Carrera RS 2.7 — the canonical desirability benchmark in the air-cooled segment — went from a strong-market price of around $400,000 to auction results exceeding $1.5 million for well-documented lightweight examples.