2009 Cadillac STS vs. 1991 Infiniti Q45
To start off, 2009 Cadillac STS 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, 2009 Cadillac STS (302 HP @ 6300 RPM) has 25 more horse power than 1991 Infiniti Q45. (277 HP @ 6000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1991 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 1991 Infiniti Q45 weights approximately 115 kg more than 2009 Cadillac STS.
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 28 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 1991 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2009 Cadillac STS | 1991 Infiniti Q45 | |
| Make | Cadillac | Infiniti |
| Model | STS | Q45 |
| Year Released | 2009 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 277 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 369 Nm | 397 Nm |
| Torque RPM | 5200 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1635 kg | 1750 kg |
| Vehicle Length | 5000 mm | 5080 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Tank Capacity | 64 L | 72 L |
