The Pirelli World Challenge (PWC) GTS class rounds 15 & 16 were held at Sonoma Raceway (August 28 to 30). Round 15 was won by Andy Lee in the #20 BestIT Racing Chevrolet Camaro and Michael Cooper won Round 16 in the #10 Blackdog Speed Shop Chevrolet Z28. Hope you like the photos.

Tony Gaples in the #11 Blackdog Speed Shop Chevrolet Z28 during Friday morning practice at the Turn 7A to 8 Esses

Turn 6 Carousel during Friday afternoon practice

Jack Baldwin in the #73 GTSport Racing Porsche Cayman S at the Turn 6 Carousel during Friday afternoon practice

Along the front straight with Michael Cooper in the #10 Blackdog Speed Shop Chevrolet Z28 during Saturday’s qualifying

World Challenge flag flying high before the start of the Round 15 race on Saturday

Buz MCall in the #73 GTSport Racing Porsche Cayman S during Saturday’s Race at the Turn 7A to 8 Esses

Past the Ferris Wheel with Paul Holton in the #78 Compass360 Racing Audi TT-RS

Speeding down the Turn 8A to 9A straight with Kevin Marshall in the #44 VSA Motorsports Lotus Evora GT4 during Saturday’s race

Really like the livery on the side of the #16 SGV Motorsports/Bilt Racing Service Porsche Cayman driven by John Allen during Saturday’s race

Through the Turn 9 chicane with Jack Baldwin who placed third during Saturday’s race in the GTSport Racing Porsche Cayman S

Round 15 race winner Andy Lee in the #20 BestIT Racing Chevrolet Camaro going through the Turn 9 chicane

Lovely PWC promotional girls at the pre-grid for Sunday’s Round 16 race

The start of Sunday’s race at Turn 4

Over the Turn 3A hill with Andrew Aquilante in the #32 Phoenix American Motorsports Ford Mustang Boss302 during Sunday’s race

Jack Baldwin in the #73 GTSport Racing Porsche Cayman S during Sunday’s race

Dean Martin in the #50 Rehagen Racing/Picture Cars East Ford Boss 302 during Sunday’s race

Into Turn 4 with Peter Ludwig in the #13 TRG-AMR Aston Martin Vantage GT4 during Sunday’s race

Over the Turn 3A hill with Kevin Marshall in the #44 VSA Motorsports Lotus Evora GT4 during Sunday’s race

Celebration during Sunday’s podium