Cubic Centimeters
A cubic centimeter (cm³) is the volume of a cube 1 centimeter on each side, and is the same as a milliliter. Engine sizes are quoted in it, so a 1,600cc engine is 1.6 liters.
UK fluid ounces
A UK fluid ounce is about 28.41 milliliters, a little smaller than the US fluid ounce of about 29.57 milliliters. So 1 US fluid ounce is about 1.04 UK fluid ounces.