NASCAR regularly sends cars to R&D Center to catch cheaters

Each race, NASCAR takes at least two Sprint Cup cars back to its R&D Center for further inspection. The winner of each races goes except for the Daytona 500 winner (inspection is completed at the track because the winning car remains in Daytona for a year after that race). The runner-up also goes to the R&D Center. At times, NASCAR selects a random car as well. Here's how many times each car has gone to the R&D Center:

#18-Kyle Busch – 5 times (Kansas, Talladega, Richmond, Texas, Martinsville) #4-Kevin Harvick – 5 times (Coke 600, Kansas, Auto Club, Phoenix, Daytona 500 #22-Joey Logano – 3 times (All-Star, Las Vegas, Daytona 500) #2-Brad Keselowski – 3 times (All-Star, Talladega, Las Vegas) #19-Carl Edwards – 3 times (Richmond, Bristol, Phoenix) #88-Dale Earnhardt Jr. – 3 times (Bristol, Texas, Atlanta) #78-Martin Truex Jr. – 2 times (Coke 600, Daytona 500) #48-Jimmie Johnson – 2 times (Auto Club, Atlanta) #5-Kasey Kahne – 2 times (Dover, Las Vegas) #16-Greg Biffle – 1 time (Coke 600) #47-A.J. Allmendinger – 1 time (Martinsville) #20-Matt Kenseth – 1 time (Dover) #42-Kyle Larson – 1 time (Dover) So that's a tally of 14 Chevrolets, 11 Toyotas and 8 Fords since the Daytona 500. NBC Sports