Something is wrong with this game. There is not enough fuel in stage 05.
As you probably remember, stage 5 on Level A was already a nightmare (you can only get destroyed once. If you get destroyed twice, the game is over). On Level B though, there is simply not enough fuel. You always run out of gas near the end of the level. Is there something I am missing?
I am missing out on what the new thing in stage 06 was for Level B. 
Yes 
Stage 01: Cars become much more packed (the space between two consecutive cars is halved)
Stage 02: Occasionaly, an ugly blue car appears from behind and races all the way to the top
Stage 03: Behind large trucks there is some weird rotating red bomb thingy
Stage 04: The rotating red thingy starts moving left and right too
Stage 05: rotating red thingy is there and now you have THREE blue cars running you from behind, plus there is no way to finish the friggin' level since there is not enough fuel. This is pretty hard if you ask me.
Stage 06: Legends have been told about this stage. The Zulu tribes dance around the fire in Africa and sing songs about this stage. This is a myth... a legend. It is Break shot. It is Goonies 2 for the MSX... well... just kidding 
I modified the ROM to some get extra fuel 
But perhaps, when you are almost out of fuel, and the car reduces its speed, you can hit other cars and the road limits to get some extra speed. I managed to reach the last straight of stage 5 in that way.
Here is a capture of stage 6, level B:
Stage 06: Legends have been told about this stage. The Zulu tribes dance around the fire in Africa and sing songs about this stage. This is a myth... a legend. It is Break shot. It is Goonies 2 for the MSX...
I almost fell down my chair laughing !!
better that then green beret 2
Didn't anyone notice that the houses' shadows suggest a different light source than those trees?
¿Aún no tienes una cuenta? ¡Conviértete en un amigo-MSX y registra tu cuenta!
