My perdana V6 shows ~2800 revs at 110km/h.

To prove it:
Perdana v6 gear ratios:
Gear Ratio    1st  =  2.846
                        2nd  =  1.581
                        3rd  =  1.000
                        4th  =  0.685
Final Gear Ratio        =  4.350
110km/h change to meters/minutes = (110 x 1000) / 60
                                                    = 1833.3 meters/mins

Speed reduction at Final gear = 0.685 x 4.35
                                            = 2.979

Meaning 1 tire rotation equals 2.979 engine turns.

Tire circumference (stock perdana v6 205/55 R16) =  1.986 meters.

Tire revs per min = 1833 / 1.986
                          = 922.96 tire revolution / min

Engine revolution per min = 922.96 x 2.979
                                      = 2749 revs / mins

So the calculated engine revs is close the reading on the rev meter (-51 revs).

But that was when my auto gearbox is ok.
Now using manual gearbox becoz my auto box kong already.
Manual tranny reads 3100 @ 110 km/h.
Not sure what are the gear ratios on the manual tranny.

is it ur kenari 1000cc??