This is driving me nuts.
Exactly what part of the cab is that pictured?
EDIT: The artwork had me thinking mid to late 80's. Looking at Citroen's online, the style is closest to 1990.
So even if the car is a generic knock-off, the game is probably within a couple years of 1990.
Browsing through racing games on my spreadsheet and KLOV from 1980-1994 got no results though.
Is it possible this isn't a racing game or is it in a racing cab?