I can, and have, several times. Any "variables" have nothing to do with whether playing in a cart is faster or not. A person walking can take forever to play and so can a person in a cart. Neither of those has anything to do with which is the faster method of play.
All "variables" aside it's no contest.
You really didn't understand the variables I was talking about. There are more factors that can come into play with a cart, that you don't deal with when walking. Mostly it depends on the course design.
Regardless, Kletus is right. The rest of this is kind of off-topic, his post nails the point of the OP.