@ who - true, I like your idea. But also each lap time should appear in large orange letters on screen after each lap. (see below).
Also Graham
NO OPPONENTS would make most sense, as there are already lots of other bikers on track in all of the modes (see screenshot, No opponents mode above still has bikers).
oh, you may find the game runs too fast on your 040 Graham, an 030 setup is perfect for this one.