I'm one of those rare guys, that speed matters. I had a 300EX 4 wheeler and after a few trips to the dunes, it was like riding a turtle, so I got a 400EX, and again, that was to slow. Last year I bought a new Kawasaki 450 4 wheeler, and had about $2000 worth to make it faster. My Harley Heritage Softail wasn't enough. So I had Denneys Harley put aftermarket exhaust. Tuner, etc. to make it louder and faster. Same with my dirt bikes, trucks, boats,etc. I have always lived on the edge, and its what excites me. I've had boats that would only go 40, and get bored after owning them a week. My current boat will do mid 60's and I wish it would do mid 70's. Just something about speed for me. My brother has a 1963 Chevy short wide bed truck that does the 1/4 in 9.02, and he drives it on the street. He's now trying to get it in the 8 second class. Must run in the family.