Right, I'll come clean instantly. I actually never played this, so I'll get around to it soon. In fact, I can't think of a game which began with V that I did play on the CPC. But, here is the Spanish cover art for your gaze plus the promo poster. It involves tanks, war and such like and it was made be Tengen, released in 1988. Lazy entry I know, but what ya gonna do?
Honourable Mentions - Erm......
Amstrad Coverart - Disc Version
Promo Poster - Multiple Formats