Porsche 911 RSR (2.8-litre flat-6, 1973), Dave Helmick's 1973 winner of the 12 Hours of Sebring - Goodwood Festival of Speed 2013
Celebrating 50 years of the Porsche 911. Dave Helmick's 1973 Porsche RSR - privateer winner of the 12 Hours of Sebring, at the Goodwood Festival of Speed 2013, Goodwood House, Chichester, West Sussex, United Kingdom (11th-14th July 2013).