This varies by race car by race car. The mpg spends on the kind of track, weather conditions, tyres, and how long the race is. Some race cars are designed for high mpg. Example is that a F1 car would do around 3-4 mpg whereas some can do as much as 60 but for oblivious reasons. The average mpg usually around 3-6 MPG.
If race cars didn't race they wouldn't be race cars.
There are many online shops that provide best mpg for auto cars. Amazon.com is one of online shop that provides best mpg for auto cars. You can visit www.amazon.com
vw.
28 MPG is pretty average for many cars on the road, so 31 MPG is good.
Right now, the best MPG cars on the market are hybrids. The Ford Fiesta and Nissan Leaf are just two cars that get some of the best MPG right now. These two cars have an incredible MPG and can get anywhere from 70 to 90 MPG. Before purchasing a vehicle research its fuel efficiency to ensure that you will get the most miles to the gallon.
There is no such thing as a Stock race car. The fact that it is a race car means it is not stock. MPG depends on exactly what type of race car you are asking about. Suffice to say, none get good mileage.
There are many efficient cars out on the market today. The best MPG car you can buy at the moment is the 2012 Smart For two Coupe at $347/MPG. Coming in next is the 2012 Nissan Versa Manual at $366/MPG.
Most race cars are only seat the driver, the only 2 seater race cars have a navigator like rally cars, and dessert race cars.
A good place to compare cars' fuel economy is at http://www.fueleconomy.gov. This includes statistics of smart cars and regular cars to compare them.
http://www.fueleconomy.gov/
yes
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.