This game is based on an incredibly simple game from Tim Hartnell's "GIant Book of Spectrum Games". The original by Alastair Gourlay, is (only) 45 lines of basic (actually it is less than that because I split lines with the ":" character).
Basically, the game presents a 'road' and the player moves up / down (with an implicit go forward). This is a little odd at first, but you get used to it quite quickly (imo). The original game had the player moving along 10 road segments (to win), I have reduced that to 2.

In addition, I have added a (optional) timer: if the player has not moved by the time the timer triggers, the player is moved forward. I have set the timer interval to 500ms. Playing the game with the timer ON makes it much more difficult (especially at the start of a road segment).
As before, I have included the basic source, in case anyone has a working 1983 Spectrum PC

Enjoy.
S.