For half a century, Porsche has been at the heart of international sports car racing and today the company is the biggest volume producer of racing cars in the world, building over 300 cars each winter.

The pair of races is for the drivers from the Porsche Club GB, who normally compete in either the Porsche Club Championship or the Porsche Open Series. By combining the two fields, the grid at Silverstone will be full of a wonderful range of racing Porsches.

From the Club Championship regulars, it is the 964RS and 968CS that is the most popular choice, while the Open field has plenty of 911GT3s and even some more potent GT racers.

Provisional Timetable

Friday 25 July
17:15 - Qualifying 13 - 20 mins

Saturday 26 July
11:15 - Race 4 - 20 mins
The Mark Donohue Trophy Race with I-MOB for Invitation Porsche Cars

CLICK HERE to see the result for this race

Sunday 27 July
11:10 - Race 14 - 20 mins
The Derek Bell Trophy Race with I-MOB for Invitational Porsche Cars

CLICK HERE to see the result for this race

CLICK HERE to see an entry list for these races.