The 2.7 RS Carrera, which was produced from 1973 to 1977, is revered by Porsche enthusiasts as the purest 911 of all times. Hence, in spite of being 40-years old, a cared-for example comes with a high price tag.

What’s surprising, according to The Telegraph, is the fact that in the past 10 years, its value has increased by an incredible 669 percent! In 2004, an RS Touring would set you back by £65,000 (US$101,000). Seven years later, you’d have to pay more than £200,000 (US$310,000) and today, depending on condition and originality, the going price is £500,000 (US$777,000)!

That’s an astonishing 669 percent increase in just 10 years! Moreover, the even rarer Lightweight version was sold at an auction earlier this year for US1.4 million.

A 1973 Touring model is up for sale at Autofarm. In spite of having 131,027 km (81,891 miles) on the odo and participating in a few Porsche Club track events, this left-hand drive car costs around £600,000 (US$930,000).

That’s because it still has the original chassis and engine and comes with a stamped service book, history folder and original handbooks. Its ashtray bears the signature of racing legend Derek Bell and, more importantly, it had a bare shell renovation and a full engine and transmission rebuild.

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