[P/O W. 'Moggy' Cattermole]

Yes, look in the controls options when the game is paused for speed bar toggle or something like that. If you use Freball's HUD config mod, you can set which kind of speed is displayed when you start a game, how incremental it is (eg speed increases in bouts of 10 [330mph, 340mph etc] or increases by 1 [330mp, 331mph, 332mph etc) and so on and so forth.