Stock cars.
Indy cars race in the rain on street and road courses, however they do not on ovals.
Indy 500 cars once included ride-along mechanics
no
09 Indy has not been run and Dale Jr does not race Indy cars
yes
The cars used in the Indianapolis 500 are called "Indy cars."
40
33
Tread.
The standard amount of cars in NASCAR is 43.
Scott Robinson has written: 'Yestales' 'Indy cars' -- subject(s): Automobile racing, Formula One automobiles, Indianapolis Speedway Race, Indy cars, Juvenile literature