Mark Sumpter - 1997 Porsche 911 GT1 Evo at the 2015 Silverstone Classic (Photo 1) 
Another shot from the archives, this time from last years Silverstone Classic and a photo of the Mark Sumpter Porsche GT1 Evolution in action during the GT Legends session.
The 911 GT1 is more Porsche 962 than 911, taking the 962's engine (water-cooled, twin-turbocharged and intercooled, four valve per cylinder flat-six engine) and placing it in the mid-mounted position rather than behind the rear axel, as is more normal for 911 derivatives.
The Evolution model featured revised aerodynamics, including that rather heavy handed rear wing. the changes aided the GT1's overall performance, but the car still failed to complete the 24 hours of Le Mans due to reliability problems.
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Dave Adams Automotive Images
Dave Adams Automotive Images on 2016-03-13 20:26:23
Tagged: , 2015 , Cars , Classic , DAAI , Dave Adams , Dave Adams Automotive Images , Motorsport , Racing , Silverstone , Vintage , Mark Sumpter , 1997 Porsche 911 GT1 Evo , 1997 , Porsche , 911 , GT1 , Evo , SilverstoneClassic , Silverstone Classic 2015 , www.daai.co.uk
