2004 Buick Rainier vs. 2006 Kia Optima

To start off, 2006 Kia Optima is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Buick Rainier. In addition, the cost of maintenance, including insurance, on 2004 Buick Rainier would be higher. At 4,195 cc (6 cylinders), 2004 Buick Rainier is equipped with a bigger engine. In terms of performance, 2004 Buick Rainier (275 HP @ 5200 RPM) has 137 more horse power than 2006 Kia Optima. (138 HP @ 5500 RPM). In normal driving conditions, 2004 Buick Rainier should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2004 Buick Rainier weights approximately 11 kg more than 2006 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.

Because 2004 Buick Rainier is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2004 Buick Rainier. However, in wet, icy, snow, or gravel driving conditions, 2006 Kia Optima, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2004 Buick Rainier (387 Nm) has 188 more torque (in Nm) than 2006 Kia Optima. (199 Nm). This means 2004 Buick Rainier will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.

Compare all specifications:

2004 Buick Rainier 2006 Kia Optima
Make Buick Kia
Model Rainier Optima
Year Released 2004 2006
Body Type SUV Sedan
Engine Position Front Front
Engine Size 4195 cc 2360 cc
Engine Cylinders 6 cylinders 4 cylinders
Engine Type in-line in-line
Valves per Cylinder 4 valves 4 valves
Horse Power 275 HP 138 HP
Engine RPM 5200 RPM 5500 RPM
Torque 387 Nm 199 Nm
Engine Compression Ratio 10.1:1 10.0:1
Drive Type Rear Front
Number of Seats 5 seats 5 seats
Number of Doors 4 doors 4 doors
Vehicle Weight 2015 kg 2004 kg
Vehicle Length 4880 mm 4730 mm
Vehicle Width 1920 mm 1820 mm
Vehicle Height 1900 mm 1420 mm
Wheelbase Size 2780 mm 2710 mm
Fuel Consumption Highway 11.2 L/100km 7.8 L/100km
Fuel Consumption City 14.7 L/100km 10.7 L/100km
Fuel Consumption Overall 13.1 L/100km 9.4 L/100km
Fuel Tank Capacity 83 L 65 L