When it comes to pure numbers, Porsche has the Grand Touring Prototype (GTP) class of the IMSA WeatherTech SportsCar Championship covered, supplying four.
The second test session for IMSA's Roar Before the 24 produced four different marques in the top four GTP cars, led by Pipo Derani in the No. 31 Whelen Engineering Cadillac Racing V-Series.R as WeatherTech SportsCar Championship drivers set their cars up for the Rolex 24 at Daytona next weekend.
Renger van der Zande kept the No. 01 Cadillac Racing V-Series.R at the top of the time sheet in the fifth and final test session of the Roar Before the 24 until he was bumped out of the top spot.by his teammate.
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