Well it is almost a go-cart. In reality it is an ancient Isuzu Pup pickup with a quarter of a million miles on it, literally. Most people, all those who are sane, would never even begin a trip of this distance with such an old and worn vehicle. However I am not sane, much to my chagrin, and I am on this trip. It has let me down only once (so far) and prayerfully that little episode has been resolved. The key to driving something well past its prime condition is two fold: excellent care and a sustainable pace, neither of which mean what you may think. Let me explain.
Excellent care is not only regular maintenance, although that can not be allowed to lapse. Excellent care means to understand the nature of the mechanism, that it is a machine, and that parts wear out, that they need replacing even though they are not part of regular maintenance. This applies to our PTA as leaders in a complete and whole way. We have to recognize (read self-awareness) and understand the mechanism, that we are social, linguistic, relational, limited, finite creatures. We have limits, and those change over time. Sometimes you even have to get parts taken out or replaced that are not part of regular maintenance! Consistent PTA = excellent care in the leader's world.
Sustainable pace for a nearly go-cart type vehicle is not Interstate Highway Speed. It actually probably never was for this type of low geared small truck. But for sure it isn't the typical 78-82 mph that cars routinely travel down the vast interstate highway system in this country today. A sustainable pace for this vehicle is 60-62 mph max. My best sustainable pace, and your best sustainable pace is much slower than you think as well. And it takes a great deal of discipline to maintain that pace which is so much slower than everyone else's pace! In 2500+ miles of driving this truck at 60 mph on the interstate, I have only passed broken down vehicles and pedestrians - everyone else blows past me like a rocket!
On the other hand, I noticed two things; that most people pass me multiple times over the course of driving down the road (which means our actual forward progress is closer than you would think) and that I am still moving forward (which is the whole point of driving at 60, that it keeps moving!) This informs us much about sustainable pacing, and I am sure you can see a dozen apparent lessons for yourself in the metaphor. I actually am living this successfully most of the time in my life as a leader. Some observations: I am much happier, content, alive, balanced than I was before in the hyper-ratrace we call productivity; I can more and more "be here now" in this moment rather than living in the next trip, curve, project, task, etc; and I can see that I am far far more productive in fewer hours than before. In fact recent research suggests at we produce as much in 11 hours now, that was produced in a 40 hour work week back in 1950. All the more reason to live a sustainable pace, you already are producing far more than generations before. But a sustainable pace for a 53 year old guy is slower than you would think, I easily have the equivalent of a quarter of a million miles on me, and I need to own that wear and tear in a responsible way. The results can be astonishing.