Twice ... the 1961 Dutch Grand Prix and the 2005 Italian Grand Prix.
Through race #23 of the 2011 season, 61 times.
yes yes yes yes
If race cars didn't race they wouldn't be race cars.
Their are several cars that don't qualify for a race because they where to slow. Only 43 race cars can be allowed to race so its not over crowded on the race track.
There are many places where a person can find images of race cars. One good place to find images of race cars are in books about racing. A local library or bookstore would have books with pictures of race cars in them. Also, many sites online have pictures of cars and race cars.
312
2005
Leo finished the race in 2.6 hours, while Pavel finished in 2.60 hours. However, both times are equivalent, as 2.60 hours is simply a different way of writing 2.6 hours. Therefore, neither runner finished first; they finished at the same time.
2
You will have to be more specific. Race car is too broad a term. There are many different types of race cars using many different engines.
2
Homestead