Madge said..
Bic windsurfing did a whole range at that time. Vivace, Veloce, etc. When pronounced they should sound, Velochey, Vivachay.
Good tips on pronunciation it is good to get it right.
tahesport.com/us_tahe_en/tahe-windsurf-former-catalogs-usBic Previous ranges is in the table at the bottom. Measurements should provide answer the OP is looking for.
Veloce is Italian for rapid and in the case of cars denoted for sporty driving. Many great Alfa Romeos were or are named as such eg GTV or Gran Turismo Veloce. (In English perhaps GTS.)

Vivace is Italian for a passage or movement (i.e. of music or in another context) marked to be performed in a lively and brisk manner. Another word for rapid or fast.