My first car was a 1.0L polo with 50hp and 99mph top speed. Any time I was in a hurry to get somewhere I would be doing sustained 6k rpm for hours at a time. I did frequent oil changes so I think helped the engine survive but it did wear out the valve stem seals so it smoked a bit on startup.
Pros: frequent oil changes helped
Cons: valve stem seals worn
Vehicle:
Volkswagen Polo