Bro if you want power acceleration & fuel avg both, go for these engines
CD20 (2000cc Diesel)
Top Speed: 180Km/hr
Fuel Avg Local: 13-15 Km/Ltr
Fuel Avg Long: 17-19 Km/Ltr
80 Hp at 4800 rpm
132 N-m at 2200 rpm
or CD20T(2000cc Diesel Turbo)
Top Speed: 220 Km/Hr
Fuel Avg Local: 14-15 Km/ltr
Fuel Avg Long: 18-19 Km/ltr
130-135 HP in nissan Sunny at 4000 rpm
174 N-m at 2400 rpm