i dont think u can achieve much better from a suv
and cng would bring the grace of this suv to minus 10 for sure(u would go to filling station 3 at night,( i used to regularly see a prado fill up at this time, to embarrassed to fill in day light)
keep it as a weekend car, and a buy a 660cc for daily use
or sell and buy a 1.3 civic or corolla i guess