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Sprint Cup Series

O'Donnell: Six cars to R&D Center for midseason evaluation

RELATED: Pocono results | Standings | Updated Chase Grid

LONG POND, Pa. -- NASCAR officials impounded six Sprint Cup Series cars following Monday's Pennsylvania 400 at Pocono Raceway and will transport the vehicles back to its Research & Development Center for additional analysis.

Steve O'Donnell, Executive Vice President and Chief Racing Development Officer for NASCAR, said two cars from each manufacturer -- Chevrolet, Ford and Toyota -- were taken for study in the wind tunnel and to gauge engine performance.

Those impounded were the cars of Brad Keselowski (Team Penske No. 2 Ford) and Greg Biffle (Roush Fenway Racing No. 16 Ford), Kevin Harvick (Stewart-Haas Racing No. 4 Chevrolet) and Kasey Kahne (Hendrick Motorsports No. 5 Chevrolet), Denny Hamlin (Joe Gibbs Racing No. 11 Toyota) and Kyle Busch (Joe Gibbs Racing No. 18 Toyota).

"It's really a mid-season evaluation for us," O’Donnell said. "If you look at where the midseason falls, typically you're at Daytona, a superspeedway race, then we were at Kentucky with the new rules package. So Pocono presented the best opportunity to us to really evaluate where we are from both an aero and engine standpoint."

Keselowski, Harvick, Hamlin and Busch finished in the top 10 in Monday's weather-shortened event.

It's not the first time NASCAR has impounded cars from each manufacturer for evaluation.

"We did this at the (Sprint) All-Star Race (in May) but (that’s) obviously a shorter race," O’Donnell said. "This was our first chance to really take a look mid-season, get the cars exactly as they were on the race track, take them from here and then perform the analysis."

NASCAR officials do an at-track inspection of the top-five cars following each race, but only the first-and second-place entries, as well as a random selection, are transported to the R&D Center to complete the post-race inspection process.

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