Monocoque can act as a noun and an adjective. A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc. The adjective is the word that accompanies the noun to determine or qualify it.
Only the most powerful speedsters can: 1  Run fast enough to approach the speed of light. 2  This feat needs complete control over a Flash's speed aura, molecular control and endurance enough to enter the Speed Force dimension.
Quicksilver can move at a maximum speed of mach 640. And, The Flash moves at a speed of 23,759,449,000,000,000,000,000,000,000,000,000,000,000,000 times the speed of light ( 23 tri-decillion times the speed of light)! The Flash is way too fast for Quicksilver to handle! So, unequivocally, the winner is The Flash.