2007 Audi A4 vs. 1991 Saturn Sedan
To start off, 2007 Audi A4 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Saturn Sedan. In addition, the cost of maintenance, including insurance, on 1991 Saturn Sedan would be higher. At 1,968 cc (4 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (138 HP @ 4000 RPM) has 53 more horse power than 1991 Saturn Sedan. (85 HP @ 6800 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 1991 Saturn Sedan. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 443 kg more than 1991 Saturn Sedan. 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, 2007 Audi A4 (320 Nm @ 1750 RPM) has 175 more torque (in Nm) than 1991 Saturn Sedan. (145 Nm @ 4800 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Saturn Sedan.
Compare all specifications:
| 2007 Audi A4 | 1991 Saturn Sedan | |
| Make | Audi | Saturn |
| Model | A4 | Sedan |
| Year Released | 2007 | 1991 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1901 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 138 HP | 85 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 320 Nm | 145 Nm |
| Torque RPM | 1750 RPM | 4800 RPM |
| Engine Bore Size | 81 mm | 82 mm |
| Engine Stroke Size | 95.5 mm | 90 mm |
| Engine Compression Ratio | 18.0:1 | 9.3:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1536 kg | 1093 kg |
| Vehicle Length | 4590 mm | 4490 mm |
| Vehicle Width | 1780 mm | 1720 mm |
| Vehicle Height | 1430 mm | 1340 mm |
| Wheelbase Size | 2650 mm | 2610 mm |
