As the title says - I just watched a video on youtube that featured some old games, and though it wasn’t shown there, I suddenly remembered a game I used to play with a friend. I googled, but I can’t find it, because I have no idea what the name was. We called it “turbo”, but I can’t find anything under that name, so that might be a false memory. I tried to look it up from time to time, but never found any trace on the net.
It was a vertical scrolling racing game. You’d start on a highway-like street with multiple lanes and drive upwards. Later, there were buildings, mountains, all sort of splits, dead ends, not only a straight road. No real curves, it always scrolled vertically. There were all kinds of obstacles, other drives, “civilian cars” and all sort of stuff on the road. It was pretty violent, you could pick up upgrades that would leave oil trails, have spikes at the side of the car that pushed other drives aside, leave grenades on the road and similar stuff (i think there were guns, but i’m not sure).
The goal (as far as I remember) was to make it as far on the road as possible, before one of the other drivers shot you / pushed you into the wall or something. There was a timelimit as well, I think. The graphics were pretty basic, very small cars, no 3D, all sprites. Sound and gameplay was very chaotic and fast.
As you can tell, the description is pretty vague, but maybe I’m lucky. 
It must have been around 1989, '90, '91, so it’s really pretty old. I just hope it’s not some small local game or so (I’m in germay). If you have any Idea what this might have been or know websites that might help, that would be great.
I’ll look into that, thanks!