1991 Infiniti Q45 vs. 2009 Lexus IS
To start off, 2009 Lexus IS is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1991 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 1991 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 1991 Infiniti Q45 (277 HP @ 6000 RPM) has 73 more horse power than 2009 Lexus IS. (204 HP @ 6400 RPM). In normal driving conditions, 1991 Infiniti Q45 should accelerate faster than 2009 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 1991 Infiniti Q45 weights approximately 100 kg more than 2009 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1991 Infiniti Q45 (397 Nm @ 4000 RPM) has 146 more torque (in Nm) than 2009 Lexus IS. (251 Nm @ 4800 RPM). This means 1991 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2009 Lexus IS.
Compare all specifications:
| 1991 Infiniti Q45 | 2009 Lexus IS | |
| Make | Infiniti | Lexus |
| Model | Q45 | IS |
| Year Released | 1991 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 2499 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 277 HP | 204 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 397 Nm | 251 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 246 km/hour | 230 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1650 kg |
| Vehicle Length | 5080 mm | 4590 mm |
| Vehicle Width | 1830 mm | 1810 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2740 mm |
| Fuel Tank Capacity | 72 L | 65 L |
