From the Zukiworld specs page.
Vitara -Introduced in 1999 Available in 2 and 4-door hard and softtop models. economically fitted with a 2.0 liter I-4 engine. ÂÂ
ENGINE
Type 1.6 Liter, 16-Valve, SOHC 2.0 Liter, 16-valve, DOHC
Block Material Aluminum Alloy Aluminum Alloy
Induction System Multi-point Electronic Fuel Injection MPFI
Displacement 97 cu. in.  122 cu. in.
Horsepower (SAE net) 97 hp |removethispart|@ 5,200 rpm 127 hp |removethispart|@ 6,000 rpm
Torque (SAE net) 103 lb.-ft. |removethispart|@ 4,000 rpm 134 lb.-ft. |removethispart|@ 3,000 rpm
Bore x Stroke 2.95 in. x 3.54 in. 3.31 X 3.54
Compression Ratio 9.5:1 9.7:1
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It is a 1.6L But it looks nothing like the 1.6L in my 1996 Tracker.