yes. they are Honda v8's and they all produce 650 horses.
http://en.wikipedia.org/wiki/IndyCar_Series#Car_History_and_Current_Specifications
Stock cars.
Indy cars race in the rain on street and road courses, however they do not on ovals.
Could be 4, 6 or 8 cylinder.
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."
195 degrees F.
40
33
The standard amount of cars in NASCAR is 43.