autto.net

That values change with different factors like altitude, temperature, drivers weights and tons more, if you read a Magazine you will get a value that would be unreal for you, the best approach is to use a car performance simulator

Try it at http://www.nxgtrsim.com

There you can define that (or any) car, and run performance test to find the number, which will be different if you drive or if I drive for example