My (the family's) first sled was a '69 Alpine 640er. Dad built a custom coach and the whole family rode at the same time. Mom & dad rode on the big sled and the kids (all 4 of us including the dog) rode in the coach. Once I was old enough to drive it myself, I put my share of miles on it. The old beast would do 60 mph on hardpack, and I gave a few 440's a run for their money. 35+ years later, I still have the thing parked in the barn.