1991 Infiniti G20 vs. 2012 Kia Optima
To start off, 2012 Kia Optima is newer by 21 year(s). Which means there will be less support and parts availability for 1991 Infiniti G20. In addition, the cost of maintenance, including insurance, on 1991 Infiniti G20 would be higher. At 2,000 cc (4 cylinders), 2012 Kia Optima is equipped with a bigger engine. In terms of performance, 2012 Kia Optima (274 HP @ 6000 RPM) has 133 more horse power than 1991 Infiniti G20. (141 HP @ 6400 RPM) In normal driving conditions, 2012 Kia Optima should accelerate faster than 1991 Infiniti G20. With that said, vehicle weight also plays an important factor in acceleration. 2012 Kia Optima weights approximately 290 kg more than 1991 Infiniti G20. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2012 Kia Optima (364 Nm @ 1750 RPM) has 183 more torque (in Nm) than 1991 Infiniti G20. (181 Nm @ 4800 RPM). This means 2012 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 1991 Infiniti G20.
Compare all specifications:
| 1991 Infiniti G20 | 2012 Kia Optima | |
| Make | Infiniti | Kia |
| Model | G20 | Optima |
| Year Released | 1991 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2000 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 274 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 181 Nm | 364 Nm |
| Torque RPM | 4800 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1245 kg | 1535 kg |
| Vehicle Length | 4450 mm | 4844 mm |
| Vehicle Width | 1700 mm | 1831 mm |
| Vehicle Height | 1400 mm | 1455 mm |
| Wheelbase Size | 2560 mm | 2797 mm |
