ghskillaI think you get the F10 after you reach level 40, so get the F2007.
But if you don't feel like the wait, this vid will show you straight line speed of both cars.
<a href="http://www.youtube.com/watch?v=8tk006gKv9Y">YouTube Link</a>
If you want to see their cornering properties, see this,
<a href="http://www.youtube.com/watch?v=YLe_2XlUGYg">YouTube Link</a>
24 ticket gets you a random f1 car