I'm just accounting for variance if the tach is a little out. I havent compared my hard wired tach to gps on my phone, but my tach sits at 5500. This is with 165/65/R14 tires.
Do the engine feel confortable at that rpm ? What is the factory redline on a EN07C engine? How many of you drive the Sambar at 100 km/h on a regular basis for a long period?
I run my sambar at 105km/h often. If you are going to make a habit of running that fast, I highly recommend installing an oil cooler.