probably because I always had it at full throttle.
The Ladybug is happy that there's another few mph left in it for most of the routes required.
They're mostly 45-50 mph roads. That way, it's not at full throttle most of the time and there's a tiny bit of room for passing.
The more I look around, the more I think I got a great deal on this thing. In the for sale ads, I'm seeing the same model for twice the price, three times the age, and 10 times the mileage. Very little needed to be done on it (mostly cosmetic/personal preference stuff) and the kid is tickled that it's quickly approaching double the odometer reading from the day we got it.