2015 Silverstone GP2 and GP3 Series rounds
The 2015 Silverstone GP2 and GP3 Series rounds were a pair of motor races that were held on 3 and 5 July 2015 at the Silverstone Circuit in the United Kingdom as part of the GP2 Series and GP3 Series . 
<triplet> 2015 Silverstone GP2 and GP3 Series rounds <subj> 2015 <obj> point in time <triplet> Silverstone Circuit <subj> United Kingdom <obj> country