Many thanks, NYYRIKKI! I have just created the rom with the blue car. We will try it soon 
Indeed, Rotors is a very cool game Especially in 2-player mode.
Did you ever want to drive the blue cars when playing hyper rally?
Aww, how cute... just have to help... Here is how to pimp your ride: Change offset: #26E9=4, #26F1=4 and with blue car you go.
We faced the blue cars with our new shining blue car, but the game still remains as difficult as always... Now we try to change every colour when msxing. Did you know that color instruction in basic can still astonish kids in the 2010's?
Should your children want to join the chess team at school but they already joined the basketball and climbing teams, ask them to beat the msx before.
My kids love to play with the MSX. My daughter even practice some math and topography to get better results at school, and it works! Still using the old software I used to practice with at school when I was her age.
Only difference with their Nintendo is, they have to wash their hands before they touch my MSX. AND DON'T EAT POTATO CHIPS!!! 
